Madison Square Garden jacket singer american idol nycAdam Lambert co-hosted Z100's annual Jingle Ball in NYC last night with Leighton Meester, where Taylor Swift, John Mayer, Miranda Cosgrove, Kesha and Justin Bieber performed at Madison Square Gardens.

Although Lambert won't be ringing in the New Year with Ryan Seacrest on Dick Clark's New Year's Rockin' Eve, he will be counting them down here in LA with Pamela Anderson!

Sorry, Ryan, but I'd much rather see the pairing of Adam and Pam than watch your show!