“What Do You Mean” singer Justin Bieber doesn’t mind showing his bare butt on Instagram, but full-frontal nudity is completely different. The Canadian pop star threatened to sue any publication that did not take down the explicit images, TMZ wrote in an exclusive report Thursday.

His team reportedly sent multiple cease-and-desist letters to news outlets that still had the private images on their site. The photos were supposedly taken Tuesday without Bieber’s consent while he was on vacation in Bora Bora with British model and blogger, Jayde Pierce, 20. If they are not taken down as soon as possible, his legal team will sue the sites, TMZ wrote.

At the time this article was written, the blog Media Take Out was one of the few publications that still had the photos.

Bieber hasn’t publicly responded to the invasion of privacy. He has remained silent on Twitter and Instagram since the photos leaked.

Nude pictures isn't the only thing Bieber has to worry about. The singer might go head-to-head against British boy-band One Direction, who will release their first album without former member Zayn Malik on Nov. 13. It’s the same day that Bieber is rumored to be releasing his new music.

Bieber opened up about his single, "What Do You Mean," when he went on "The Ellen DeGeneres Show" in September. What she pressed him abou the meaning of the song, he denied it was about ex-girlfriend Selena Gomez. “I wrote the song for women in general,” he said. “I just never know what women are thinking 'cause they say one thing and they meant another thing and then they’re like do this and don’t do this and then I’m like … what do you mean?”

For anyone who wondered if there is a synthesizer in the song, Bieber said it was his real voice. “That’s actually my vocal, they just chopped it up,” he told DeGeneres. “They pitched it up and they messed with it and stuff.”

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