Britney Spears slipped into some sparkling bodysuits for the opening night of her Las Vegas "Piece of Me" residency show at Planet Hollywood Resort & Casino.

Spears wore an array of bodysuits -- from a ring leader-styled ensemble for "Circus" to a full-length diamond-encrusted suit reminiscent of her "Toxic" music video look -- on Friday night for her 90-minute Sin City show.

The 32-year-old looked glamorous in seven different costumes and various wigs as she performed for the crowd, which included Miley Cyrus, Selena Gomez and Katy Perry . Cyrus even got a little frisky with one of the dancers during a set change, MTV noted.

The pop superstar performed 24 of her biggest hits , according to Billboard, like "Oops... I Did It Again," "Everytime," "Lucky," "Crazy," "Womanizer," "... Baby One More Time" and "Til the World Ends." She only performed two tracks from her new album, "Work B**ch" and "Perfume."

Casino executives told the Associated Press the two-year residency may be extended if successful.