Emma tries to flee when the frozen yogurt machine breaks, and Heather wraps up her time on 'Punk'd.'
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Videos from Episode
'Glee' star Heather Morris takes over 'Punk'd,' and Cody Simpson stumbles upon a robbery in progress.
Cody begins to lose it when his guitar is destroyed, and Joe Jonas gets suspicious when he walks into a prank.
The crew scrambles when Joe figures out he's being punked, and Emma Roberts stops to pick up some frozen yogurt.
Emma tries to flee when the frozen yogurt machine breaks, and Heather wraps up her time on 'Punk'd.'
