Rihanna

Rihanna (about.com)

Gals -and guys-, get ready for the joined forces of girl power!

Famous female singers will unite for the annual Lilith Tour this year. Those who already signed to participate are tour founder and creator Sarah McLachlan, Emmylou Harris, the Indigo Girls, Jill Scott, Mary J. Blige, Sara Bareilles, Sheryl Crow, Sia, and Sugarland.

There will also be Kelly Clarkson, Colbie Caillat, Norah Jones, Disney star Selena Gomez, Tik Tok singer Ke$ha, and Erykah Badu, who recently fined by the city of Dallas because of the stripping controversy in her Window Seat video.

Rihanna became the latest female singer on board, as she announced Monday that she has decided to take a short break from her -recently announced- North American summer tour to join the 2010 Lilith Tour for one night in Salt Lake City on July 12. Tickets for Rihanna’s Salt Lake City date go on sale on April 17.

Excited with the tour? You can check the lineup of artists for each date at LilithFair.com, and mark your calendar!

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