If you ever want to surprise No Limit legend Master P for his birthday with a flash mob......DON'T.  As it turns out, the rap icon doesn't like surprises.

As reported by TMZ, P was in the middle of a little b-day lunch with his son Romeo and a couple companions at a L.A. restaurant, when all of a sudden his table was bum-rushed by a 15 member flash mob.   Judging from his reaction, he wasn't thrilled with their performance.

As far as the lady who ran-up behind P, it appears she was trying to explain something.  Maybe she was the person that set-up the flash mob.  Whoever it was, they learned a valuable lesson......Master P ain't the one.  Bet they won’t try it again.