Disney puppet Demi Lovato is trying to prove she’s more punk than you are with her Shop Til You Rock mall tour. With a roster of acts including Every Avenue, Hey Monday and Stereo Skyline, the pop princess is hosting the national event full of games, prizes and a free concert. Bystanders and shoppers are bound to cringe in vicarious embarrassment as teenyboppers shriek in the presence of pop-rockers The Bigger Lights. They sing about heartbreak, skinny jeans, girls named Summer and they have hairstyles that compete with the majority of L’Oréal commercials. Get ready to Shop Til You Rock at Woodbridge Mall July 31. The event runs from 1 to 6 p.m.