2011 Teen Choice Awards | Entertainment News, Photos, and Videos

Avril Lavigne steps out on the blue carpet at the 2011 Teen Choice Awards on Sunday (August 7) at the Gibson Amphitheatre in Universal City, Calif.

The 26-year-old singer, who wore her own Abbey Dawn designs, just wrapped up her South American tour with a performance in Brazil.

“Last show of the south american tour!!! LETS KICK SOME ASS BRASILIA BRAZIL!!!!” Avril tweeted before her final show.

Next month, Avril will head to Europe for the next leg of her tour!

The 2011 Teen Choice Awards airs live TODAY (August 7) at 8 p.m. on FOX. The Big Bang Theory‘s Kaley Cuoco is hosting the show!

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Kaley Cuoco walks down the blue carpet at the 2011 Teen Choice Awards on Sunday (August 7) at the Gibson Amphitheatre in Universal City, Calif.

The 25-year-old Big Bang Theory actress, who wore a Rebecca Taylor dress, is serving as the evening’s host!

She accessorized with Neil Lane moonstone, diamond and platinum drop earrings and diamond bracelets.

Kaley is also nominated for Choice TV Actress in the comedy category against Miley Cyrus, Demi Lovato, Selena Gomez, and Miranda Cosgrove.

Catch Kaley on the premiere of The Big Bang Theory‘s fifth season on September 22 on CBS!

The 2011 Teen Choice Awards airs live TODAY (August 7) at 8 p.m. on FOX.

More Here! »