Today, Mary Mary announced the “Do Something Big” campaign, a 6-week initiative where fans are asked to “do something big” for others.  Each week, Mary Mary will challenge us to focus on a different group of those in need.

This week, it’s the elderly… next week, they’re asking people to do something big for the homeless.

Aside from supporting the cause, participants will be entered to win prizes like autographed CDs, a pair of Sony headphones (I want some!), and more.

Visit their Facebook page at http://www.facebook.com/MaryMary to do something big!

According to the sister duo, the “Do Something Big” campaign is the heartbeat of their upcoming album, Something Big (in stores March 29th, but available for pre-order now).