Lady Gaga & Taylor Kinney Pack on the PDA at Operation Smile's Celebrity Ski & Smile Challenge

Lady Gaga gets a smooch from her fiance Taylor Kinney while attending Operation Smile’s 2015 Annual Celebrity Ski & Smile Challenge on Saturday (March 14) in Park City, UT.

The engaged couple was joined by Taylor‘s Vampire Diaries pals Michael Trevino and Claire Holt, as well as Scott Wolf and About a Boy‘s David Walton.

Teams of six racers consisting of a celebrity skier, one Olympic skier, and four amateur skiers/Operation Smile donors competed in a friendly dual slalom race to raise funds for the organization. Zachary Levi and The Nerd Machine team up to host the event every year.

FYI: Gaga is wearing House of Lavande Vintage earrings. Taylor is wearing a Levi’s shirt. On the slopes, Taylor and Gaga are both wearing Volcom snow gear and Arnette goggles.

20+ pictures inside of Lady Gaga, Taylor Kinney, and more participating in the charity event…