Robin Leach

Photo Gallery: Christina Aguilera @Tao and Nicole Richie @Lavo

NYE 2009: Christina Aguilera @Tao, Nicole Richie @Lavo

Jason Strauss and Devon Aoki at Tao in The Venetian on New Year's Eve 2009.

Jason Strauss and Devon Aoki at Tao in The Venetian on New Year's Eve 2009.

Deryck Whibley of Sum 41 at Tao in The Venetian on New Year's Eve 2009.

Deryck Whibley of Sum 41 at Tao in The Venetian on New Year's Eve 2009.

Christina Aguilera - from

Christina Aguilera and Nicole Richie - from

Christina Aguilera - from

Nicole Richie - from

It was a case of 1-2 star power for the sister nightspots Tao in The Venetian and Lavo in the adjoining Palazzo, as singer Christina Aguilera and reality TV star Nicole Richie ushered in 2010 and a brand new decade.

Christina took a break from filming her movie Burlesque in Hollywood for her brief Las Vegas visit with husband Jordan Bratman and got in the festive spirit with a party hat to pose for leading lens lady Denise Truscello.

Nicole stunned fans with her new, long brunette locks -- and was a stunner on the red carpet!

Our loyal Vegas DeLuxe reader Richard Corey was on hand to capture video for YouTube. We’ll add more photos and news later but wanted to get these first photos posted as early as possible.

Updated at 8:28 a.m. on Jan. 2, 2010:

Our spywitnesses at Tao and Lavo reported for us: Christina and Nicole helped Las Vegas ring in 2010 at Tao and Lavo. Christina arrived on the red carpet looking stunning in a Moschino dress with jewels by Stephen Webster and chatted about how excited she is for the New Year, with her album dropping in March and her movie Burlesque premiering in November.

Christina, who was joined by husband Jordan Bratman, her sister Rachel and her dancers, raved about the gorgeous penthouse suite at The Venetian where they were staying. “The Venetian is amazing, and we’ve had an awesome time,” she said. The group dined in Tao’s private dining room before heading upstairs to a nightclub skybox.

Christina was so excited to lead the countdown to 2010 that she took to the stage a few minutes early much to delight of the packed hotspot. After pronouncing “Happy New Year,” she left the stage and gave her husband a kiss.

At Lavo, Nicole and beau Joel Madden were on hand to celebrate with revelers. Nicole, who has a jewelry collection and is launching clothing and shoe lines, wore a low-back gold dress from her collection Winter Kate. The mother of two was excited to come to Las Vegas, but the couple didn’t want to be away from their kids for too long, so they made the trip very quick.

They flew in on Thursday and spent the day in the luxurious Sienna Suite at The Palazzo, enjoying cupcakes from Sweet Surrender, as well as an Italian feast in the private dining room at Lavo.

As for New Year’s resolutions, Nicole aims to be the best version of herself and “grow gracefully.” Nicole hit the catwalk at Lavo two minutes before midnight and turned her own camera on the crowd, snapping shots to post on Twitter. After counting down to might, she joined Joel in the DJ booth.

Partying at Lavo on NYE were actor Ryan Gosling, who was spotted chatting with Jaime Murray of Dexter; newly single Sum 41 rocker Deryck Whibley, who has split from singer Avril Lavigne; actress and model Devon Aoki and Wilmer Valderrama of That ’70s Show fame; and Michael Steger from The CW’s 90210 and his wife Brandee Tucker.

Wilmer got on the mic at Lavo, entertaining the crowd while doing Patron shots, while Ryan, Jaime, Deryck and Devon all headed to Tao after 2 a.m. to finish their New Year’s celebration.

Follow Robin Leach on Twitter HERE.

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