Chief Keef Gets Flashed By Fan ... Forgets Everything!!

8/29/2015 10:37 AM PDT

Chief Keef -- Gets Flashed By Fan ... Forgets Everything!! (VIDEO)

EXCLUSIVE

Chief Keef isn't someone to be left speechless, but one female fan did just that when she flashed the rapper during a show. 

Keef was in Orange County Thursday night when the rowdy fan stood up on a barricade. Keef tells her to be careful not to fall and she thanks him for the concern by lifting up her shirt.

Check out the video ... the rapper is so stunned he can't even start his next song.