I also heard he got busted for smoking weed and he's really sorry about it and people make mistakes and he's never gonna do it again.

Referring to himself, during a skit on SNL's the Miley Cyrus Show, as quoted in Huffington Post "Justin Bieber Apologizes For Smoking Weed On 'Saturday Night Live'", February 2013

Justin Bieber Apologizes For Smoking Weed On 'Saturday Night Live' (VIDEO)[huffpost.com]