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Video: Jesse McCartney Forgets National Anthem Lyrics

By K.R. Gomez on October 13, 2009

HOLLYWOOD, Calif. — Jesse McCartney was left embarrassed Sunday when he forgot the lyrics while performing the National Anthem at NASCAR's Pepsi 500.

The 22-year-old singer skipped over an entire line of the "Star Spangled Banner" at the NASCAR Sprint Cup playoff race at Auto Club Speedway in Fontana, Calif.

McCartney later blamed the National Anthem blunder on some bad nerves.

"Here at the Nascar race! So much fun! Can't believe I forgot the words to the Anthem! I've performed it 100 times. Bad nerves today I guess," he wrote on Twitter.

McCartney will soon be hitting the right notes in the fight against cancer when takes the stage at the second annual Concert for Hope on Oct. 25. The star will be joined by fellow Disney Music Group artists Miley Cyrus and Demi Lovato at the event, which benefits lifesaving cancer research and treatment programs at City of Hope, one of the nation's leading cancer centers.

Also see: Jesse McCartney Gallery

Watch Jesse McCartney performing the National Anthem at the Pepsi 500: