Justin Bieber sees Comedy Central roast as therapy for 21st b'day

Justin Bieber has himself asked Comedy Central to be roasted to celebrate his 21st birthday as he wants to make a public declaration he's screwed up a lot in the past, but he's figured it out and has changed for the better.

The 20-year-old singer thinks that if the comedy network channel will make fun of him it will act as a therapy, TMZ.com reported.

It has also been reported that the 'Baby' hitmaker seems to have changed over the last 4 months and people have also observed a radical change in the singer's behviour.