Entertainment Justin Bieber never wears the same underwear twice By WILL MENDELSON firstname.lastname@example.org May 21, 2015 5:54 PM Print Share fbShare Tweet gShare Email This is what we call a Justin Bieber problem. On Wednesday night, Bieber, 21, appeared on CBS's "Late Late Show with James Corden" and revealed that he only wears underwear once. Well, sort of. Let me clarify. Corden, 36, drove Bieber around Los Angeles and asked him about his Calvin Klein underwear ads. In response, Bieber said, "Yeah, I definitely don't wear them twice. There's so many!" I mean, I wish I had that problem, Biebs. By WILL MENDELSON email@example.com Share on Facebook Share on Twitter Comments Comments section is temporarily on hold. Here’s why.