Sophia Bush: Be My Sweat for Change Sponsor!

Sophia Bush texts on her cell while walking around on the set of Hatfields & McCoys on Monday (March 18) in Boston, Mass.

The 30-year-old actress stars in the hour long drama series pilot, which is being executive produced by Charlize Theron.

“Gettin my sweat on for Little Kids Rock! Hittin the bike. Changin the game #SweatForChangeChallenge Sponsor me �’� –>” Sophia tweeted that day, along with a link to her challenge.

“Sign up for the 30-day challenge and commit to doing something amazing for yourself each day. Moksha yoga, a hike, spin, something just for you. And then take that and add raising $10 a day for 30 days.” Sophia wrote on the challenge’s page. “Together, let’s raise more than $100,000 for Little Kids Rock, a non-profit that transforms children’s lives by restoring music education in local public schools.”