The Killers, KT Tunstall, Jack Johnson and Keane are all helping make the world a better-and more inhabitable-place by participating on "Classics," an album by Cuban musical group Rhythms del Mundo that benefits U.K. climate change charity, Artists Project Earth.

In stores Aug, 11, "Classics" features songs recorded expressly by RDM for the project include the Killers' cover of the Eagles' "Hotel California" and KT Tunstall's interpretation of Patti Smith/Bruce Springsteen's "Because the Night," as well as previously recorded tracks, Jack Johnson's version of "Imagine" and Fall Out Boy/John Mayer's take on "Beat It."

Tunstall is also part of another charity outfit called 7 Worlds Collide. The collective also includes members of Crowded House, Radiohead, Wilco, and the Smiths.

"The Sun Came Out" is a 2-CD set of original songs from these artists. It follows the first 7 Worlds Collide album released seven years ago that featured many of the above artists performing cover songs live.

The brainchild of Crowded House's Neil Finn, "Sun" features the musicians collaborating on each other's songs. For example, The Smiths' Johnny Marr and Wilco's Jeff Tweedy penned new song "True Blue," which is performed by Marr and Neil Finn.  Radiohead's Ed O'Brien co-wrote "Learn to Crawl" with Finn, his son Liam Finn, and Marr, while the Finns handle the vocals.

Proceeds from album sales go to international hunger organization Oxfam.

To hear selections from Classics, please click below.

The Killers - "Hotel California"
 
Jack Johnson - "Imagine"
 
Keane - "Under Pressure"

KT Tunstall - "Because The Night"