Behati Prinsloo share with her fans a sexy photo of her fiance' Adam Levine.

The model posted Wednesday on Instagram a picture of the Maroon 5 lead singer shirtless and wearing only a black pair of underwear and dark sunglasses. She captioned the photo: "70′s porn called. It wants its vibe back. Immediately."

The 24-year-old's followers really appreciated her sharing the image of the near naked judge from The Voice -- so far the picture garnered over 22,000 "likes" on the social media website.

One follower wrote, "GOD BLESS YOU FOR POSTING THIS" and another commented, "Damn! Wtf! Sexy as hell ! I love you!'

Levine proposed to Prinsloo July 13 weekend in Los Angeles.

Adam Levine Engaged to Behati Prinsloo: Couple Walk Through LAX With Locked Arms [PHOTOS]

A rep confirmed the engagement telling Us Weekly, "Adam Levine and his girlfriend Behati Prinsloo are excited to announce they are engaged to be married. The couple recently reunited and Adam proposed this weekend in Los Angeles."

A friend of the Moves Like Jagger singer told the magazine, "He realized he really does love her and she was the one."

"They are in love," the insider added.

Adam Levine Engaged to Behati Prinsloo & Wants Wedding 'the Sooner the Better,' Source Says

The couple dated previously in May 2012 and broke up for some time before reconciling earlier this year, according to his rep. The Victoria's Secret model described the proposal as a "surprise."

Prinsloo said on July 18, "It hasn't even sunk in yet! Last night, I forgot I slept with my ring on. I woke up and went, 'Oh, hello!'"

Levine told Oprah Winfrey on Oprah's Next Chapter in June that he knew he would be ready to settle down "at some point." He has been romantically linked in the past to Sports Illustrated model Anne Vyalitsyna, Cameron Diaz, Jessica Simpson and model Nina Agdal.

NBC's The Voice returns on Monday, Sept. 23 with a two-hour premiere at 8 p.m. EST. This season will include the original judge panel from seasons 1 to 3, including the return of Christina Aguilera and Cee-Lo Green. Shakira and Usher, the sit-in judges from season 4, will return next spring for season 6.

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Adam Levine, The Voice Season 5, The Voice 5