Singer Nicole Scherzinger kicked off her birthday celebrations by spending the weekend (23-24Jun12) in Las Vegas.

The former Pussycat Dolls star turns 34 on Friday (29Jun12) and to mark her big day she flew to Sin City for a string of parties.

On Saturday (23Jun12) she entertained pals at the Venetian Hotel's Tao Beach venue and later headed to the Tao Asian Bistro, according to website E! Online.

She was surprised with a brightly-coloured birthday cake adorned with pink flowers and treated to a rendition of Happy Birthday, before telling revellers, "What's up Vegas? Thank you so much for coming to celebrate my birthday."