More than 1,000 fans swarmed the venue to catch a glimpse of the singer, who arrived in a white 1958 Chevy Impala convertible and wore a sequined black gown on the red carpet.
Dancers, contortionists and acrobats marked Spears' arrival, and she took time to sign autographs for fans, many of whom carried "Happy Birthday" banners for the pop star, who turned 32 on Monday.
"In Vegas! Celebrating #BritneyJean & #PieceOfMe with my new Vegas family. :)" ...
Schwarzenegger is a longtime supporter of After-School All-Stars, a charity which aims to keep children safe with after-school activities, and he has now come up with a new plan to raise money for the organization.
In a video posted on YouTube, the 66 year-old actor urges fans to donate to the charity and promises to match every dollar given, saying, "This is such an important issue and I want to raise money... For every dollar that...