Britney Spears will perform in Las Vegas tonight (25.03.11).

The 'Hold It Against Me' hitmaker will take to the stage at Rain Nightclub in the Palms Casino Resort to showcase tracks from her forthcoming new album 'Femme Fatale' and invited her twitter followers to the show.

She posted on her page on the micro-blogging website: "Looks like my little secret isn't a secret anymore. Who's coming to watch me take the stage TONIGHT.

"You're all invited. Be there or be square bitch!"

The 29-year-old singer also revealed she will be sharing the stage with 'Jersey Shore' star DJ Pauly D.

Alongside a picture of the Palms marquee which said 'Clash Fridays DJ Pauly D & Special Guest', she wrote: "I wonder who the special guest is?"

The performance in Las Vegas will be filmed for a forthcoming MTV special.

It was revealed earlier today that Britney will mark the release of her new album next Tuesday (29.03.11) with a special midnight performance on talk show 'Jimmy Kimmel Live', with her day kicking off with an appearance on 'Good Morning America'.