Celebrity Gossip's

Britney Spears is preparing to join the "True Colors" concert tour June 30 at the Greek Theater in Los Angeles.

She will join Cyndi Lauper, Erasure, Debbie Harry, The Dresden Dolls, The MisShapes with special guest Jeffree Star, and host Margaret Cho on the tour, People magazine reported Sunday.

The singer also scheduled callbacks Friday for two new male backup dancers who will be added to her show, but she never showed up. In her place she sent two of her female backup dancers to record the 21 men for Spears to observe and select at a later time.

She actually attended the first tryout June 7 when nearly 150 men showed up to dance to one of the pop star's new unreleased songs.

"It was dope. It reminded me of that one song you hear at 1:50 a.m., when they call last call at a club, and it's the hottest, nastiest song you've ever heard in your life and you've just got to put your drink down and dance to it. You've got no choice. Your body is insisting on it," said dancer Sam Pete, 25, of Spears's new song.