Get Tickets for New Lady Gaga NYC Shows; Video of Her at AMAs and in Pre-Gaga Days

Two more shows have been added to Lady Gaga's existing two nights at New York's Radio City Music Hall. She will now be performing at the famed Rockefeller Center venue on Jan. 20-21 and 23-24, 2010. Kid Cudi and Jason Derulo will be supporting Lady Gaga at all four gigs. You can buy Lady Gaga Radio City tickets here for all four shows; this is the official Radio City online box office. Tickets for all of the Radio City shows are on sale now.

And if you're wondering who Lady Gaga was before she was running around without pants and with flashing lights in public, well, check out the video below. It's from a 2005 show at at New York University talent show and features a young singer and pianist named Stefani Germanotta. I guess that name and the female singer-songwriter motif was just too common in the NYC area, so somehow she came up with the Lady Gaga persona. Obviously a smart marketing move.