Jon Hamm is lashing out at another celebrity in an interview, and this time it's Justin Bieber.

Hamm is on the cover of Men's Fitness to promote the final season of Mad Men, and he has some choice words for the Canadian pop star.

While talking about young Hollywood, the actor says, "Look at Bieber or whoever. You're like, 'What the f--k, man? What are you doing? Why?' There’s no one telling those people no, and it’s a shame."

He continues later, explaining young stars need "a mom or a dad or a really good friend who can say, 'Hey, sh—head!'"

His rant continued as he shared his disgust for people who had no life skills. "You see people in the world and you’re like, 'Do you know how a washing machine works? Do you know how to wash a dish?' Life skills are something we’re missing… just s--t you needed to learn in life."

Two years ago, Hamm made similar comments but target Kim Kardashian. He told Elle UK, "Whether it's Paris Hilton or Kim Kardashian or whoever, stupidity is certainly celebrated.

"Being a f--king idiot is a valuable commodity in this culture because you're rewarded significantly. Incuriousness has become cool… It’s celebrated. It doesn’t make sense to me."

Hamm later catergorized the quote as "not personal" towards the reality stars, but also "not wrong."