diff --git a/packages/app/app/actions/tag.js b/packages/app/app/actions/tag.ts
similarity index 79%
rename from packages/app/app/actions/tag.js
rename to packages/app/app/actions/tag.ts
index 226cf53fb8..ca7800cdb3 100644
--- a/packages/app/app/actions/tag.js
+++ b/packages/app/app/actions/tag.ts
@@ -7,14 +7,14 @@ export const LOAD_TAG_INFO_SUCCESS = 'LOAD_TAG_INFO_SUCCESS';
 export const LOAD_TAG_INFO_ERROR = 'LOAD_TAG_INFO_ERROR';
 const lastfm = new rest.LastFmApi(globals.lastfmApiKey, globals.lastfmApiSecret);
 
-export function loadTagInfoStart(tag) {
+export function loadTagInfoStart(tag: string) {
   return {
     type: LOAD_TAG_INFO_START,
     payload: tag
   };
 }
 
-export function loadTagInfoSuccess(tag, data) {
+export function loadTagInfoSuccess(tag: string, data) {
   return {
     type: LOAD_TAG_INFO_SUCCESS,
     payload: {
@@ -24,14 +24,14 @@ export function loadTagInfoSuccess(tag, data) {
   };
 }
 
-export function loadTagInfoError(tag) {
+export function loadTagInfoError(tag: string) {
   return {
     type: LOAD_TAG_INFO_ERROR,
     payload: tag
   };
 }
 
-export function loadTagInfo(tag) {
+export function loadTagInfo(tag: string) {
   return dispatch => {
     dispatch(loadTagInfoStart(tag));
 
@@ -41,8 +41,7 @@ export function loadTagInfo(tag) {
       lastfm.getTagAlbums(tag),
       lastfm.getTagArtists(tag)
     ])
-      .then(results => Promise.all(results.map(r => r.json())))
-      .then(results => {
+      .then((results) => {
         dispatch(loadTagInfoSuccess(tag, results));
       })
       .catch(error => {
diff --git a/packages/app/app/components/TagView/index.js b/packages/app/app/components/TagView/index.js
index 7529e541e5..3e1e23653c 100644
--- a/packages/app/app/components/TagView/index.js
+++ b/packages/app/app/components/TagView/index.js
@@ -42,7 +42,6 @@ class TagView extends React.Component {
     );
   }
 
-
   renderTopAlbums (topAlbums) {
     return (
       <TagTopList
@@ -54,7 +53,6 @@ class TagView extends React.Component {
   }
 
   renderTagTopTracks (topTracks, addToQueue) {
-
     return (
       <TagTopTracks
         tracks={topTracks}
@@ -85,10 +83,10 @@ class TagView extends React.Component {
     const { addToQueue, tag, tags } = this.props;
     let tagInfo, topTracks, topAlbums, topArtists;
     if (tags[tag] && tags[tag].loading !== true) {
-      tagInfo = tags[tag][0].tag;
-      topTracks = tags[tag][1].tracks.track;
-      topAlbums = tags[tag][2].albums.album;
-      topArtists = tags[tag][3].topartists.artist;
+      tagInfo = tags[tag][0];
+      topTracks = tags[tag][1];
+      topAlbums = tags[tag][2];
+      topArtists = tags[tag][3];
     }
     return (
       <div className={styles.tag_view_container}>
diff --git a/packages/app/app/reducers/tag.js b/packages/app/app/reducers/tag.ts
similarity index 100%
rename from packages/app/app/reducers/tag.js
rename to packages/app/app/reducers/tag.ts
diff --git a/packages/core/src/rest/Lastfm.ts b/packages/core/src/rest/Lastfm.ts
index 6586e03739..4a79658d78 100644
--- a/packages/core/src/rest/Lastfm.ts
+++ b/packages/core/src/rest/Lastfm.ts
@@ -1,4 +1,5 @@
 import md5 from 'md5';
+import { LastFmArtistInfo, LastfmAlbum, LastfmArtistShort, LastfmTag, LastfmTrackMatch } from './Lastfm.types';
 
 const scrobblingApiUrl = 'https://ws.audioscrobbler.com/2.0/';
 
@@ -6,7 +7,7 @@ class LastFmApi {
   constructor(
     private key: string,
     private secret: string
-  ) {}
+  ) { }
 
   sign(url: string): string {
     const tokens = decodeURIComponent((url.split('?')[1].split('&').sort().join()).replace(/,/g, '').replace(/=/g, ''));
@@ -16,8 +17,8 @@ class LastFmApi {
 
   prepareUrl(url: string): string {
     const withApiKey = `${url}&api_key=${this.key}`;
-  
-    return `${withApiKey}&api_sig=${this.sign(withApiKey)}` ;
+
+    return `${withApiKey}&api_sig=${this.sign(withApiKey)}`;
   }
 
   addApiKey(url: string): string {
@@ -29,20 +30,20 @@ class LastFmApi {
   }
 
   lastFmLogin(authToken: string): Promise<Response> {
-    return fetch(this.prepareUrl(scrobblingApiUrl + '?method=auth.getSession&token=' + authToken)+'&format=json');
+    return fetch(this.prepareUrl(scrobblingApiUrl + '?method=auth.getSession&token=' + authToken) + '&format=json');
   }
 
   scrobble(artist: string, track: string, session: string): Promise<Response> {
     return fetch(this.prepareUrl(
       scrobblingApiUrl +
-        '?method=track.scrobble&sk=' +
-        session +
-        '&artist=' +
-        encodeURIComponent(artist) +
-        '&track=' +
-        encodeURIComponent(track) +
-        '&timestamp=' +
-        (Math.floor(Date.now() /1000 - 540))),
+      '?method=track.scrobble&sk=' +
+      session +
+      '&artist=' +
+      encodeURIComponent(artist) +
+      '&track=' +
+      encodeURIComponent(track) +
+      '&timestamp=' +
+      (Math.floor(Date.now() / 1000 - 540))),
     {
       method: 'POST'
     }
@@ -52,12 +53,12 @@ class LastFmApi {
   updateNowPlaying(artist: string, track: string, session: string): Promise<Response> {
     return fetch(this.prepareUrl(
       scrobblingApiUrl +
-        '?method=track.updateNowPlaying&sk=' +
-        session +
-        '&artist=' +
-        encodeURIComponent(artist) +
-        '&track=' +
-        encodeURIComponent(track)),
+      '?method=track.updateNowPlaying&sk=' +
+      session +
+      '&artist=' +
+      encodeURIComponent(artist) +
+      '&track=' +
+      encodeURIComponent(track)),
     {
       method: 'POST'
     }
@@ -67,94 +68,101 @@ class LastFmApi {
   getArtistInfo(artist: string): Promise<Response> {
     return fetch(this.addApiKey(
       scrobblingApiUrl +
-        '?method=artist.getinfo&artist=' +
-        encodeURIComponent(artist) +
-        '&format=json'
+      '?method=artist.getinfo&artist=' +
+      encodeURIComponent(artist) +
+      '&format=json'
     ));
   }
 
   getArtistTopTracks(artist: string): Promise<Response> {
     return fetch(this.addApiKey(
       scrobblingApiUrl +
-        '?method=artist.gettoptracks&artist=' +
-        encodeURIComponent(artist) +
-        '&format=json'
+      '?method=artist.gettoptracks&artist=' +
+      encodeURIComponent(artist) +
+      '&format=json'
     ));
   }
 
   getTopTags(): Promise<Response> {
     return fetch(this.addApiKey(
       scrobblingApiUrl +
-        '?method=tag.getTopTags&format=json'
+      '?method=tag.getTopTags&format=json'
     ));
   }
 
   getTopTracks(): Promise<Response> {
     return fetch(this.addApiKey(
       scrobblingApiUrl +
-        '?method=chart.getTopTracks&format=json'
+      '?method=chart.getTopTracks&format=json'
     ));
   }
 
-  getTagInfo(tag: string): Promise<Response> {
-    return fetch(this.addApiKey(
+  async getTagInfo(tag: string): Promise<LastfmTag> {
+    const result = await (await fetch(this.addApiKey(
       scrobblingApiUrl +
-        '?method=tag.getInfo&format=json&tag=' +
-        tag
-    ));
+      '?method=tag.getInfo&format=json&tag=' +
+      tag
+    ))).json();
+
+    return result.tag as LastfmTag;
   }
 
-  getTagTracks(tag: string): Promise<Response> {
-    return fetch(this.addApiKey(
+  async getTagTracks(tag: string): Promise<LastfmTrackMatch[]> {
+    const result = await (await fetch(this.addApiKey(
       scrobblingApiUrl +
-        '?method=tag.getTopTracks&format=json&tag=' +
-        tag
-    ));
+      '?method=tag.getTopTracks&format=json&tag=' +
+      tag
+    ))).json();
+
+    return result.tracks.track as LastfmTrackMatch[];
   }
 
-  getTagAlbums(tag: string): Promise<Response> {
-    return fetch(this.addApiKey(
+  async getTagAlbums(tag: string): Promise<LastfmAlbum[]> {
+    const result = await (await fetch(this.addApiKey(
       scrobblingApiUrl +
-        '?method=tag.getTopAlbums&format=json&tag=' +
-        tag
-    ));
+      '?method=tag.getTopAlbums&format=json&tag=' +
+      tag
+    ))).json();
+    return result.albums.album as LastfmAlbum[];
   }
 
-  getTagArtists(tag: string): Promise<Response> {
-    return fetch(this.addApiKey(
+  async getTagArtists(tag: string): Promise<LastfmArtistShort[]> {
+    const result = await (await fetch(this.addApiKey(
       scrobblingApiUrl +
-        '?method=tag.getTopArtists&format=json&tag=' +
-        tag
-    ));
+      '?method=tag.getTopArtists&format=json&tag=' +
+      tag
+    ))).json();
+
+    return result.topartists.artist as LastfmArtistShort[];
   }
 
   getSimilarTags(tag: string): Promise<Response> {
     return fetch(this.addApiKey(
       scrobblingApiUrl +
-        '?method=tag.getSimilar&format=json&tag=' +
-        tag
+      '?method=tag.getSimilar&format=json&tag=' +
+      tag
     ));
   }
 
   getSimilarTracks(artist: string, track: string, limit = 100): Promise<Response> {
     return fetch(this.addApiKey(
       scrobblingApiUrl +
-        '?method=track.getSimilar&format=json&artist=' +
-        artist +
-        '&track=' +
-        track +
-        '&limit=' +
-        limit
+      '?method=track.getSimilar&format=json&artist=' +
+      artist +
+      '&track=' +
+      track +
+      '&limit=' +
+      limit
     ));
   }
 
   searchTracks(terms: string, limit = 30): Promise<Response> {
     return fetch(this.addApiKey(
       scrobblingApiUrl +
-        '?method=track.search&format=json&track=' +
-        encodeURIComponent(terms) +
-        '&limit=' +
-        limit
+      '?method=track.search&format=json&track=' +
+      encodeURIComponent(terms) +
+      '&limit=' +
+      limit
     ));
   }
 
diff --git a/packages/core/src/rest/Lastfm.types.ts b/packages/core/src/rest/Lastfm.types.ts
index 374a83bbd5..3ecfb1e935 100644
--- a/packages/core/src/rest/Lastfm.types.ts
+++ b/packages/core/src/rest/Lastfm.types.ts
@@ -12,6 +12,12 @@ export type LastfmArtistShort = {
 export type LastfmTag = {
   name: string;
   url: string;
+  reach: number;
+  taggings: number;
+  wiki: { 
+    summary: string;
+    content: string;
+  };
 }
 
 export type LastFmArtistInfo = {
@@ -49,13 +55,13 @@ export type LastfmTopTracks = {
 }
 
 export type LastfmTrackMatch = {
-  name: string
-  artist: string
-  image: LastfmImage[]
-  listeners: string
-  mbid: string
-  streamable: string
-  url: string
+  name: string;
+  mbid: string;
+  url: string;
+  streamable: string;
+  artist: string;
+  image: LastfmImage[];
+  listeners: string;
 }
 
 export type LastfmTrackMatchInternal  = LastfmTrackMatch & { thumbnail: string }
@@ -65,3 +71,11 @@ export type LastfmTopTag = {
   count: number
   reach: number
 }
+
+export type LastfmAlbum = {
+  name: string;
+  mbid: string;
+  url: string;
+  artist: string;
+  image: LastfmImage[];
+}