Grammy-nominated musician, philanthropist, and "actionist", Kenna, is climbing Tanzania's Mt. Kilimanjaro right now to raise awareness about the global clean water crisis.

He's not alone though. He has a group of notable friends who's joined him on the journey -- including actress Jessica Biel, Emile Hirsch, rapper Lupe Fiasco, singer Santigold, Isabel Lucas, and more.

In support of the "Summit On The Summit: Kilimanjaro" climb, Kenna has just released a new track titled "Turn" that is available for download, free for a limited time at MySpace.com/Kenna.

" 'Turn' is a song about journeys in life and the need to make decisions to change, even when everything seems like it's going well," the musician says about the song. "Take a risk on doing something great, even if you leave behind something comfortable."

In exchange for the free download, listeners are asked to help support the "Summit On The Summit" by making a donation to sponsor a foot of the climb at SummitOnTheSummit.com.

The 19,340 foot tall website lets you follow the "SOTS:K" climbers every step of the way via photos, videos, and tweets straight from the mountain.

You can also support by tweeting about the cause by visiting SummitOnTheSummit-Tools.com. Just click "Post to My Twitter" and the tools will automatically be added to your profile.
Directly following using the API above - The call to action is tweeting: "I just went BLUE in support of @SOTSK, http://ow.ly/QynP -Tag (@NAME) YOU'RE IT"