Credit: John Shearer/Getty Images Photo: Lance Bass and Emmanuelle Chriqui in Los Angeles

Interested in seeing Lance Bass dressed up as a puppy? You may have your chance. The Dancing With the Stars Season 7 alumnus and his longtime pal, Emmanuelle Chriqui (of Entourage fame) are going head-to-head to raise money for the charity of their choice as part of the Power-of-2 initiative. Whoever wins gets to pick a crazy stunt for the loser to perform.

The stunt Emmanuelle has picked out for Lance? She wants him to dress up as PooFu the dog — a costume he wore during his first job in Mississippi before hitting it big with NSYNC — and hike Runyon Canyon in Los Angeles!

The money Emmanuelle raises will go towards Colon Cancer Canada, an effort close to her own heart. Emmanuelle’s mother passed away from the disease, and her father is currently fighting it, making it a very personal campaign for her. Lance is raising funds for St. Jude’s Children’s Research Hospital.

To donate to either cause, go to www.power-of-2.org and follow the competition at @PWROF2.