VIDEO & PHOTOS: Britney Spears Turns Femme Fatale For GMA; Announces Tour With Enrique Iglesias

March 29 2011, Published 10:30 a.m. ET

Britney Spears celebrated the release of her new album Femme Fatale by staging a special pre-taped concert broadcast on Good Morning America Tuesday and by announcing that she will be touring this summer with Enrique Iglesias, and RadarOnline.com has a clip from her performance for you.

During the concert -- taped Sunday at the Bill Graham Civic Auditorium in San Francisco -- Britney performed several songs off her new album, starting with the dance single, Hold It Against Me, followed by Big Fat Bass and her latest single, Till the World Ends.

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GMA anchor Robin Roberts and weatherman Sam Champion were on location to talk to Spears, 29, and present her with a framed proclamation declaring it "Britney Spears Day" in the City by the Bay.

Speaking to Roberts and Champion on stage, an exuberant Spears said: "Thank you so much for all your love and support. You guys are beautiful," she told the audience. "I love it. I love music. It's my world. It's my everything."

All week, GMA had been teasing us in commercials that Brit Brit would make a big announcement, and she did, telling Roberts: "I'm going on tour with Enrique Iglesias in June."

And in case you hadn't guessed it: Femme Fatale -- Britney's seventh studio album -- drops Tuesday.

Watch the video on RadarOnline.com