March 31, 2015 1:05 AM EDT

Will Ferrell made a surprise appearance at Comedy Central’s Roast of Justin Bieber Monday night, as zany TV news anchor Ron Burgundy.

“This kid has spunk, moxie and probably a few other STDs,” said the Anchorman star. “I’ve always encouraged people to stay classy. And what’s more classy than hanging out with [controversial boxer] Floyd Mayweather?”

“Here’s a news flash, gang: he’s a man,” said Burgundy who then told Bieber to “turn up the heat” on his scandalous behavior and to keep living his life “with the same reckless abandon.”

Write to Helen Regan at

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