The boys are at it again, lending their voices to charity. We are so proud of them.

U2 joins a slew of other artists, including, Celine Dion, Kathy Perry, Mary J Blige, John Mayer and Kenny Chesney, in providing new material for the second installment of "Stand Up 2 Caner On Demand," which launched on Comcast last December.

"Stand Up 2 Cancer" is a one of a kind video-on-demand initiative aimed at broadening awareness of cancer and raising much needed funds for innovative research.

U2 fans can see the program at no additional costs from now through March 14.

To date over 60 artists have participated in the video-on-demand.

Expect great things from the Irish lads.

To find out more log onto www.standup2cancer.org