Video: Christina Aguilera turned DOWN for singing at New Orleans bar!

Christina Aguilera was apparently out in NOLA on Thursday and wanted to get up and sing with the band at an unnamed bar in town and was turned down flat.  Wow, that's embarrassing... but I think cool of her to go up and see if they wanted her to sing.  I'm thinking the guys didn't know who they were saying no to!

Photo: Getty Images