Who'd have enough nerve to criticize Keith Urban? In the latest episode of 'Idol Chatter' Keith plays Happy Birthday to someone on his laptop, when Randy Jackson bursts in to burst the balloons.

'Yo yo yo yo, what's going on? Keith what are you doing? That was the wrong key. The tempo was bad. Keith, listen dude, song choice is everything. You're a great judge, but song choice brother,' Randy rants before storming out of Keith's trailer.  All Keith can do is stare, dumbfounded.

If ANYONE interrupted Keith singing Happy Birthday to me, off key or not, I'd kill 'em!  And Keith is NEVER off key.  But the look Keith is left with is priceless. Too funny!