Due to a mix-up on Grammy night, Christina Aguilera and Madonna were forced to share a private jet in order to arrive in time for the ceremony. Once up in the air, Christina pulled out a $1,000 bill and announced: "I'm going to throw this $1,000 bill out the window and make someone down below very happy." Not to be outdone, Madonna pulled out a $1,000 bill, ripped it in half and threw it out of the window, gushing excitedly: "Look, I just made two people really happy." Madonna's brother has come…