Atlantic Records

By this time Thursday, rapper/philanthropist Kenna will be leading a group that includes actors Jessica Biel, Emile Hirsch and Isabel Lucas and musicians Lupe Fiasco and Santigold on the trip of a lifetime to the top of Mount Kilimanjaro.

"When Kenna called me about joining the team for Summit on the Summit, I could hardly contain my excitement — combining an epic adventure with an educational process on the global water crisis, and finding a creative way to engage people towards an important and charitable cause, this climb is something special I couldn't miss," said Hirsch, who began training for the arduous climb three weeks ago by running stairs in California. "I hope we can inspire as many people as possible in doing this, as well as learn more about the water crisis ourselves, and what we can do in our everyday lives. And put this on the books: I'm making it to the top."

Check out the full article over at MTV.com now!