Avril Lavigne Performs on The Voice Finale
The singer was joined by finalist Cassadee Pope to perform "I'm With You," a song Pope sung earlier in the season.
Pope was named the winner of Season 3 in fan voting, ahead of rocker Terry McDermott and soul man Nicholas David.
The finale also featured guest appearances by Bruno Mars, Kelly Clarkson, Smokey Robinson, Peter Frampton and The Killers. Watch it here.
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