The Jonas Brothers who rocked Dallas' Superpages.com Center Wednesday night are not the same band that warmed up for Hannah Montana in Fort Worth's Convention Center just eight months ago. That was a fun group, but the show was just OK -- nothing to stand up and scream your lungs out about.

Since then, the Brothers have been busy -- touring, writing music, starring in Disney movie Camp Rock and doing what teenagers do best: growing up.

Their new Burning Up tour is a slicker, more sophisticated and entertaining show. Mixing well-known hits with tunes from the CD they'll release in August, the kids rolled through more than an hour and a half of music that kicked off with a group of cellists and violinists (all female) playing pretty, rich notes that segued into the JoBros' teen-independence anthem, That's Just the Way We Roll.

Dressed in trademark skinny suits and vests (and with several costume changes), Kevin, Joe and Nick took the standing crowd through hard-rocking numbers (with flames and lasers lighting up the stage) and occasional ballads.