Sandra Bullock Wins Choice Actress, Dances with Betty

Making a surprise appearance, Sandra Bullock showed up at the Gibson Amphitheatre for the 2010 Teen Choice Awards in Universal City, California on Sunday (August 8).

The lovely actress enjoyed the festivities from a prime seat, taking the stage to collect her surfboard after being named as Choice Movie Actress for her role in "The Blind Side."

During the course of the night, Sandra also joined forces with "Golden Girls" gal Betty White for a hilarious bump-n-grind dance number.

Performing hosting duties this year was Katy Perry, who was joined by the guys of "Glee," including Chris Coifer, Kevin McHale, Cory Monteith and Mark Salling.

Be sure to tune in to the 2010 Teen Choice Awards on Monday, August 9th at 8:00-10:00 PM (ET/PT) on FOX.

Enjoy the pictures of Sandra Bullock at the 2010 Teen Choice Awards (August 8).