Beyonce baby announcement among VMA highlights

Every year, MTV's Video Music Awards are known for outrageous moments.

This year's show in Los Angeles is making the usual headlines, thanks to a major announcement by Beyonce.

CBS News National Correspondent Ben Tracy reported the show had no host, but a vaguely familiar guy character opened the show and returned throughout the night.

Pictures: MTV VMAs Red Carpet 2011
Pictures: MTV VMAs show highlights
Special section: Awards season

It was Lady Gaga, with slicked back hair and an ever-present cigarette..

There were other attention getting performances, including British singer Adele and Chris Brown, who took his dance moves to new heights.

But Beyonce may have stolen the show, with the news she and husband Jay-Z are expecting their first child.

Pop star mom Britney Spears accepted two awards, but turned down the opportunity for a liplock with GaGa, like the infamous one she had with Madonna, saying, "I've done that already."

Nicki Minaj looked like she raided Lady Gaga's closet and Katy Perry, though winning two awards, was perhaps most notable for her hat - a yellow cube. Perry won two awards, including the night's biggest, video of the year.

The show also took a serious turn when Tony Bennett offered a poignant tribute to Amy Winehouse.

Pictures: Amy Winehouse, 1983-2011
Pictures: Celebs mourn Amy Winehouse

Bennett told the audience, "She was a true jazz artist in the tradition of Ella Fitzgerald and Billie Holiday. She had the gift."

He presented a touching video of a duet he recorded with Winehouse just weeks before her death.