23 August,2012 08:20 AM IST | | IANS
Bieber shared the news on Twitter and wrote : "Just did a voice over for the 'The Simpsons!' !! Swaggy." Executive producer of the show Al Jean also confirmed the news.
"He tries to get into a talent show that Bart is playing piano in and they won't admit him. Draw your own conclusions... It's a cameo, but all of his fans should watch every minute of the show, before and after he's on," Jean said.