Watch: Justin Bieber Chats With David Letterman About Weasels, Paternity Scandal

Good on Justin Bieber for seeking out his elders' wisdom.

And we'd bet David Letterman probably thought his own sex scandal couldn't possibly produce a silver lining like wisdom to passed on to a younger man.

The 17-year-old tsunami of pop-stardom manned up this week and announced that he would lay his paternity-suit allegations from 20-year-old would-be groupie Mariah Yeater to rest permanently with a voluntary paternity test.

Bieber's already had one Hell of a week since, starting with barely contained pandemonium at "Today Show" concert this morning. But before that, he also stopped by for a chat on "The Late Show" with Letterman about the business of being an alleged baby-daddy.

To Letterman's credit, he comes across not so much "fatherly" as maybe like the only uncle that gets the not-quite-"angsty" teenager. Letterman had several extramarital affairs brought to light in 2009 during the FBI's investigation into threats of extortion against the comedian and long-time late-night host.

That being the case, Letterman sympathetically told Bieber that he could smell a "weasel" in the works.

Watch Justin Bieber on "Late Show with David Letterman":