Madonna made quite an impression on the guests at Mercer Kitchen the other night. It seems she walked in solo and proceeded to flirt with hotelier Andre Balazs right in front of his girlfriend, Uma Thurman. The Lowdown reports:

"Madonna was fixing his shirt and cooing about how much she likes his hotels," reports a Lowdown spy. "She was acting like she didn't have a husband, flirting away and swaying her a- in front of Andre's face. He was acting star-struck, as if it was the first time he met her."

Apparently Uma was "oblivious" to the whole thing. Hmm, I hate to say it, but maybe this is why she did not see Ethan's cheating ways. Wake up Uma and stand up for your tall self.

In other Madonna news, she is already calling her daughter a diva (last story). So much for the strict parenting she has talked about enforcing.