Rihanna Surrenders After Performance In Las Vegas

Rihanna celebrated her sold-out show at Mandalay Bay Events Center Saturday night by partying and dancing until early into the morning, RadarOnline.com has learned.

The Barbados-born singer and her entourage of 20 -- including some of her singers and dancers -- jumped hotels and went to Surrender nightclub at Encore Las Vegas.

The VIP group was escorted to a private bungalow where Rihanna got wild 'n crazy with Fiji water and Sprite. Oh well. But she did get up and dance with her friends, letting off steam until 3 am.

Rihanna moves to Los Angeles for her next show Wednesday night.