"So Gone" is a song by American R&B recording artist Monica. It was one out of several tracks rapper-producer Missy Elliott wrote and produced along with Kenneth Cunningham and Jamahl Rye from production duo Spike & Jamahl for Monica's fourth studio album, "After the Storm" (2003), following the delay and subsequent reconstruction of her 2002 album, "All Eyez on Me". Incorporating elements of hip hop and 1970s-style smooth jazz as well as soul music, it features a sample from the 1976 song "You Are Number One", penned by Zyah Ahmonuel and performed by The Whispers.