Try 'Pimp My Music - Free' first. The pro version has no banner ads.

The most complete and feature rich Android music tag editor/music player on the market!
Find missing album covers/lyrics and change artist and album names effortlessly, straight from your phone.

***Important***
From Android 4.4 Kitkat and above. Google has restricted third party apps from writing to an external SD card.
This means that this app can no longer update music on an SD card on Kitkat and above.

You can either move your music collection to internal storage OR root your device and change your external storage permissions.
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* Fix your music library, on your phone.
* Music player
* LRC Karaoke style lyrics scrolling/highlighting support (LRC format must be pasted into lyrics field) (Beta)
* Edit Id3 tags in MP3, OGG, FLAC, MP4, M4A, M4P, M4B, WAV, RA, RM, MPGA and WMA audio files.
* Auto fetch missing album covers.
* Search and save album covers/art from Google images (finds images for rare albums).
* Add album covers from sdcard.
* Batch tagging.
* Rename/delete files from id3 tag fields.
* Saves to both file and android media database.
* Audio playback (not FLAC or WMA audio).
* App2sd (store app on SD card)
* Supports MP3 ID3v1,ID3v11, ID3v2.2, v2.3 and v2.4 transparently, saves in v2.4.
* Browse by album, artist, song, genre, folders.
* Search by ID3 fields.
* Editable ID3 tag fields include: artist, title, album, artist album, genre, comment, track, track total, composer, lyrics, year, disc number.
* Search lyrics (artist & title and from text in lyrics)
* Auto fetch missing lyrics
* Fix garbled tags by changing character sets.

Note:
* Unfortunately, Google have blocked write access to external storage from kitkat (api level 19 and above). Media files would need to be on your internal storage. Or if you root your device, you can modify the external storage write permissions.
* Saves to both file id3 tag and Android music player database.
* The android music player only uses 1 album cover per album. Save one file in an album and the music player will show that album cover for all the tracks in the album.
* The missing album cover search selects the first result, if it is wrong you need to change it manually by clicking on the song.
* Does not edit all video file formats.

Any errors please submit an error report.
If you would like to help fix wrong translations, please send an email.

Step 1. Download Pimp My Music - Pro Mod (Paid for free Free purchase) APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Pimp My Music - Pro Mod (Paid for free Free purchase) APK will begin installing on your device. Simple.

Step 1. Download HappyMod APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Search Pimp My Music - Pro Mod, click Download.
Step 4: You can download 100% working mods on HappyMod with one click.