Britney Spears: Palms Performance in Vegas!

Britney Spears hits the stage at Rain Nightclub inside the Palms Casino & Resort on Friday (March 25) in Las Vegas.

The 29-year-old pop princess performed two mini concerts, which were reportedly filmed for an upcoming MTV special. She sang a four-song set including “Hold It Against Me,” “Big Fat Bass,” “3,” and “Till The World Ends.”

Earlier in the day, Brit revealed on her Twitter page she’d be in Sin City.

“You’re all invited. Be there or be square bitch!” she tweeted, later adding, “Just wrapped final rehearsals. Pumped! Here we go people.”

Don’t forget, Brit will also be performing on Good Morning America and Jimmy Kimmel Live! this Tuesday – the same day Femme Fatale drops!