Luke Bryan Apologizes for National Anthem Gaffe (Video)

Country singer Luke Bryan used a little bit of guidance while singing "The Star-Spangled Banner" at the MLB All-Star game in Kansas City on Tuesday night, glancing down at lyrics written on the palm of his hand during the performance.

our editor recommends

'American Idol's Scotty McCreery Flubs National Anthem at World Series (Video)

Famous Flubs of the National Anthem

The move prompted outrage among some red-blooded Americans, who believed that Bryan should have fully memorized the words.

On Wednesday, Bryan posted a few tweets in reference to the incident, saying: "I had a few keys words written down to insure myself that I wouldn't mess up. I just wanted to do my best. I promise it was from the heart. If I offended anyone with my approach I sincerely apologize. Anytime I sing the anthem it is an honor and my heart beats out of my chest."

While he may have nailed down the words, Bryan isn’t the first to fumble with the national anthem recently. Christina Aguilera memorably flubbed at the 2011 Super Bowl, Steven Tyler was criticized for screaming as he perfromed the song before an NFL playoff game this year, and American Idol winner Scotty McCreery mixed up the lyrics before Game 1 of the 2011 World Series.

Bryan also checked his watch during the performance, which was more noticeably disrespectful to critics than looking down at his palm. In his Twitter apology, Bryan also addressed the quick glance to his wrist. “I did check my watch because I knew stealth bomber would fly over 2 minutes in and I knew I started a little late.”

Despite a few negative comments, fans were mostly supportive of Bryan's gaffe. Many on Twitter wrote comments like, “Better to write them down than butcher the song,” and "I don't even care that Luke Bryan had the words written on his hand. #istilllovehim."

Watch Bryan's performance below.

Twitter: @THRMusic