Even American Idol alums get stage fright.

PHOTOS: Inside the American Idol finale

Season 10 winner Scotty McCreery, 18, was caught lip-syncing during Macy's 85th Annual Thanksgiving Day parade Thursday. As his song "The Trouble With Girls" played, McCreery stood motionless on the float for several seconds. NBC cut away from a close-up of the singer to give McCreery time to catch up.

VIDEO: Scotty and Lauren chat with Us about the Idols tour

McCreery's former competitor, Season 10 runner-up Lauren Alaina, also had performance anxiety Thursday. The 17-year-old sang the "Star Spangled Banner" at the Detroit Lions/Green Bay Packers game, which started off on a high note. But when Alaina got to the line, "What so proudly we hailed at the twilight's last gleaming," she paused for several moments, struggling to remember the lyrics.

VIDEO: Watch Scotty perform his debut single, "I Love You This Big"

"I'm not a robot. I have no excuses. I messed up. You know, what can you do? At least I didn't fall down again," Alaina tweeted after the goof. "Thank you everyone for the kind words. But the truth is I messed up. I'm gonna spend the rest of the day being thankful for all my blessings."

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