Carrie Underwood on Idol Criticism: 'I'm a Terrible Liar'

Carrie Underwood dishes on why she dishes out constructive criticism to American Idol contestants - she's just a terrible liar! The country superstar, who joined the judging panel this season, says she can't fake it when a performance falls flat. Instead of sugarcoating, she offers honest feedback to help them improve, because that's what real mentorship looks like. Fans love her straightforward vibe, and it's making for some of the best Idol moments yet. Read more about this...