Hollywood stars like Katherine Heigl and Lisa Kudrow, along with pro skiers, will hit the slopes in a race benefitting children born with cleft lips and palates at Canyons Resort.

The 2012 Smile Downhill raises funds for Operation Smile, an international children's medical charity, with the highlight being the race starting at 10 a.m. on Saturday, March 31.

As teams of six racers (one celebrity, one professional and four amateurs or donors) compete against one another, they will be raising funds to provide the life-altering surgeries.

The public can watch the races along the Sunrise Trail with the finish line near Canyons Resort Village.

Operation Smile has changed the lives of more than 200,000 children born with cleft lips and palates.

The participating celebrities:

Katherine Heigl, Lisa Kudrow, Lucy Hale, Ty Burrell, Jesse Tyler Ferguson, Josh Kelley, kate Walsh, Chris Case, Billy Bush, Naya Rivera, Scott Wolf and Jennifer Salke.

The participating winter olympians:

Billy Demong, Fuzz Feddersen, Kaylin Richardson, Derek Parra, Erik Schlopy, Holly Flanders and Tracy Evans.

Event schedule:

Race registration and course inspection: 9 a.m.
Celebrity Ski Challenge on Lower Sunrise Taril: 10 a.m.
Luncheon and awards ceremony at Alpine House: 12 p.m.
Free concert by Martin Sexton and Monophonics in the Resort Village: 3 p.m.