Somebody at Chief Keef's show last night in Orange County wanted to be Sosa's umteenth baby mama.

It all started when a concerned Keef told a rowdy female fan who was standing on the barricade "whatever you do, don't fall girl." In response to his noticing her she lifted up her shirt, revealing a lack of a bra.

As you can see, Keef was so thrown by the boobage that he forgot to start the next song.