Gigi Hadid poses topless for Guess ad campaign

LOS ANGELES, Jan. 7 (UPI) -- Gigi Hadid recently stripped down for Guess.

The 19-year-old model posed topless and in other revealing outfits for the brand's spring 2015 line. Designer and co-founder Paul Marciano teased the shoot last week on Instagram, and Hadid also shared a preview from the new campaign.

"Sneak peek, me n my custom denim!" she wrote of her Marciano-designed jeans. "Thank you @paulmarciano for always supporting me and my career, so much love for you and the whole team."

Hadid has modeled for Guess for nearly 15 years, and was made the face of the label in 2012. She has walked the runway for such brands as Marc Jacobs and Chanel, and teased a photo shoot for Victoria's Secret Pink in December.

Hadid is the daughter of Real Housewives of Beverly Hills reality star Yolanda Foster and Mohamed Hadid. She and singer Cody Simpson confirmed they are back together in November, and she spent the new year with Selena Gomez and Kendall Jenner in Dubai.