Country superstar Kellie Pickler performed "God Bless America" at Major League Baseball's All-Star game Tuesday, and she opens up to Showbiz Tonight about another controversial performance at the game. Country singer Luke Byran is being criticized for writing the lyrics to the National Anthem on his hand, and peeking at them while singing at the game's opening. But Pickler comes to his defense, explaining how much pressure large-scale performances can be. Pickler, who was a contestant on "American Idol" in 2006, also reveals whether or not she'd ever leave behind her tour bus and become a judge on the music competition show!

Tune in to Showbiz Tonight at 11p.m. ET/PT on HLN to watch the complete interview with Kellie Pickler.