He deleted the video after uploading it, but fans saw a woman giving him oral sex.
The woman in the 54-second video was quickly deleted, but fans quickly screen recorded it, and it went viral on the internet.
After the video went viral, Nelly issued an apology to both his fans and the unidentified woman's family, according to TMZ.
Nelly has been linked to several women over the years, but his most famous relationship was with model Shantel Jackson, 31.
On the show, Jackson said, “My ex and I didn't end on bad terms.”