Lady Gaga's Monster Ball Meets Z100's Jingle Ball in New York

It's a strange thing, seeing Lady Gaga play to a half-empty Madison Square Garden.

The all-star pop concert put on by her hometown's biggest Top-40 station would, on the surface, seem to be the perfect setting for her kitschy excess. Plus, Mother Monster legend tells us that an 11-year-old Gaga first declared her dream of becoming a singer at Jingle Ball, a bit of trivia invoked repeatedly by the star and the station on Friday night.

"This was the first live show I had ever been to!" Gaga announced early in her set, when the crowd was ...rollingstone