Karina Smirnoff, Ralph Macchio

Dancing with the Stars pro Karina Smirnoff will bare all in the May issue of Playboy, according to Hugh Hefner.

Check out photos of Smirnoff

"The May issue of Playboy is unforgettable with Dancing With The Stars' Karina Smirnoff on the cover & nude inside." Hefner, the magazine's founder,  tweeted Tuesday. Hefner has made other big announcements via Twitter in the past, including his engagement to Crystal Harris.

A rep for the magazine confirmed Hefner's tweet and said that images of the cover will be available as soon as next week. Smirnoff's rep didn't immediately respond to TVGuide.com's request for comment.

Smirnoff, who joined Dancing in its third season, has taken it all off before: She posed nude in 2009 for a PETA ad, which noted that she'd "rather dance naked than wear fur."

Dancing with the Stars' Karina Smirnoff engaged

Smirnoff is engaged to Detroit Tigers pitcher Brad Penny. She is currently paired with Ralph Macchio on the latest season of Dancing with the Stars.