Maria Menounos: 'Lime-A-Rita' Cinco de Mayo Party in Las Vegas

The Dancing With the Stars partners practiced their new moves at Bud Light Lime's 'Lime-A-Rita' Cinco de Mayo party in Las Vegas.

Maria Menounos, 33, showed off her super fit body in a lime green bikini, while Derek Hough, 26, flaunted his rock-hard abs while lounging poolside.

Maria Menounos Lime-A-Rita Cinco Party Gallery: