Britney Spears might just be having the best week she's had since "Toxic" immediately went gold in 2004. Not only did the pop star just release a groovy new single ("Work Bitch"), but she revealed this morning on Good Morning America that she's hit the jackpot with a two-year Las Vegas performance deal — the $30 million jackpot, that is.

Starting Dec. 27, Brit will be performing two 90-minute shows every other weekend in her Piece of Me: Planet Hollywood gig. "I love it here. The energy here is really, really good," the songstress told GMA. "I am definitely going to do the greatest hits but I am going to have to put my new material in it to keep it fresh." Tickets for the shows go on sale today.

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