Bieber Bomb - Text bomb your friends random Justin Bieber lyrics
Freesound - The Freesound Project is a collaborative database of Creative Commons licensed sounds.
SelenaBot - A chatbot of Selena Gomez on Facebook Messenger
Hum - Songwriting for iPhone
KanyeBot - Kanye's verses, rants, and best quotes in Messenger
RiffShare - Write down a musical riff, send to band members, collaborate