Demi Lovato in Rock & Republic Jeans demi-lovato-rock-republic-skiny-bitch-jeans-jt1.jpg

Demi Lovato and the brothers Jonas performed for the crowd as they kicked off Good Morning America‘s 2010 Summer Concert Series at Rumsey Playfield in NYC on Friday morning. Demi was wearing Rock & Republic Crazy B!@#h Studded and Distressed Jeans in Taint Black.