A-Rod Parties with Madge's Gal Pal

7/15/2008 1:13 PM PDT
Madonna made sure her eyes and ears were at A-Rod's party in NYC last night -- in the form of her best gal pal Ingrid Casares.

Interestingly, Ingrid is allegedly the reason why Madonna and former BFF Sandra Bernhard stopped being friends in '90s.

Madge knows you have to keep your friends close -- and the guy you are rumored to be shacking up with closer!