Sarah Barthel of the electro-pop duo Phantogram sings the hook. Big Boi told The Boombox
that his recordings with the Phantogram pair were his favorite sessions for Vicious Lies and Dangerous Rumors
. "That's because [members] Josh and Sarah are just so cool and they came out for like a whole week," he explained. "We camped out and made so much music and had so much fun. That's why Sarah appears on like two or three songs, because she just came in here and took to certain beats that we played and we just vibed off each other."