Music stories are here!

Player BG for Youtube allows you to play music stories save your listening history and play music in a handy floating popup for a multitasking music listening experience.

Noteworthy:
Search music videos!
Manage playlists: Create rename or delete!
Rotate to full screen play mode!
Sleep Timer!
Autoplay!

NB:
Playing music in lockscreen is not allowed in order to respect YouTube's Terms of Use. Player BG is a music streaming app not a downloader and cannot play your own mp3 files.