This app picks most popular songs and albums with greatest hits artists in itunes store and spotify from youtube. It's like a "free" itunes store / spotify based on the music database of youtube. It supports background play and fully compatible with AirPods without annoying popup / blocking ads. The builtin music player has rich features. You can add songs to the media library, edit personal playlists, and export / share with friends. It's free so check it out! App store link : https://itunes.apple.com/app/id1287982100?mt=8