Team USA's own gymnast and gold medalist Gabby Douglas, 16, co-hosted Wednesday night's America's Got Talent on NBC, along with regular host Nick Cannon and judges Howard Stern, Howie Mandel and Sharon Osbourne.

While the judges and voters of America's Got Talent sent only four of the 12 YouTube acts from Tuesday night into the semifinals, Douglas stole the show, appearing in shiny leather pants, high heels, flowing hair and, of course, her gold medals.

Douglas helped Cannon host the show, reading off the teleprompter to introduce the acts. When she appeared on stage, the crowd chanted "U-S-A!" and Stern, Osbourne and Mandel all gave her a standing ovation.

The America's Got Talent episode topped out Wednsday's ratings, beating runner-up So You Think You Can Dance on Fox by 3.6 million viewers.

For more on Gabby Douglas and the 2012 Olympics:

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U.S. Women's Gymnastic Team With McKayla Maroney & Jordyn Wieber Wins Gold

EXCLUSIVE: U.S. Olympic All-Around Gold Medalist Gabby Douglas Talks 'Splurging' After Games

EXCLUSIVE: Olympic Gymnast Jonathan Horton Talks Competition Day Routine

Jordyn Wieber Eliminated From All-Around Final At 2012 London Olympics

U.S. Gymnast Danell Leyva Wins Bronze In All-Around Comeback

Does U.S. Gymnast Danell Leyva Have The Body For Gymnastics?

Gymnast Aly Raisman Wins Two Individual Medals For USA

Gabby Douglas Falls On Balance Beam, Finishes Seventh

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