Watch: Britney Spears Brings Andy Cohen on Stage to Get His Freak On

But did she know his name?

Britney Spears had some fun with Andy Cohen Tuesday night (July 25) at her New York City show at Radio City Music Hall.

The “Toxic” singer invited the Watch What Happens Live host to join her stage for a performance of her song, “Freakshow,” which required Cohen to wear a leash and get on all fours to be walked.

Following the impromptu moment, Cohen bowed down to the pop queen.

“I think you all know who this is…give it up for him!” Spears told the crowd, appearing to hide the fact that she may or may not know who Cohen was herself.

Lamar Dawson is a pop culture junkie and pop diva addict living in Manhattan. Follow him on everything @dirrtykingofpop.