Mama Knowles jumped on stage during Jamie's performance at the Angel Ball in NYC Monday night -- and decided to back, back, back it on up ... right into Awkwardville.
And that's when Jamie starts sweating. His options:
- Totally go for it and give Beyonce's mom the ride dance of her life
- Politely back away because that's Jay Z's mother-in-law.
And, of course, he doesn't wanna hurt Tina's feelings either, so ... watch to see how Jamie handled it.
As for Tina -- just blame it on the a-a-a-a-a-a-alcohol.