Atlanta producer Childish Major turned 25 on July 4 and grabbed TDE's Isaiah Rashad and SZA to help him celebrate. "Happy Birthday" sees Childish Major reflecting on his life as he reaches a quarter of a century, focusing in particular on a failed relationship. SZA, fresh from working with Rihanna on ANTI, provides the hook. Posting the track on Soundcloud, Childish Major told fans to hear more from him. "This is just the beginning," he wrote. "Pay attention to the level up!"