Before the Jonas Brothers hit the stage Tuesday night at the Post-Gazette Pavilion, the soundman played "I Want You Back," a Jackson 5 song later covered by 'N Sync.

In the summer of 2008, that torch has been passed to the Jonas boys -- Joe, Nick and Kevin -- who drew a sold-out crowd of screaming girls, their good-natured parents and the occasional younger brother.

An 11-year-old girl could do worse than this sugar-coated, starter pop that bounces along very much in the vein of Timberlake's crew or Maroon 5. A 16-year-old girl could do a lot better, but that's a whole other issue.

Following in the path of such burned-out tween stars as the Backstreet Boys and Britney, the Jonas Brothers work hard to keep it real. Two of the brothers play guitar, Kevin even taking some leads, and Nick also sits down at piano and drums. Joe, with the dark hair swept across his face, is a dashing frontman who can play the rocker or the blue-eyed soul dude.

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Not only did they have an additional guitarist and rhythm section, they were backed by no less than an eight-piece string ensemble that actually got a crack at a classical piece. What could be a better antidote to the Britneys and Ashlees than people playing violins?

Of course, much of the nuance they could have gotten from all this instrumentation was wiped-out by the ear-splitting screams from the fan section. Nick and Kevin could have been playing all the wrong chords and no one would have noticed.

Befitting their age, and that of the girls in the T-shirts, the Jonas' pumped out a set of catchy, formulaic pop songs like "That's Just the Way We Roll," "Hold On" and "BB Good," a single from their new, chart-topping album.

They varied the pace with a two-guitar, two-cello pairing on "Gotta Find You," a song that could have come from the Dashboard Confessional emo catalogue. After a video concerning his bout with diabetes, young Nick, exuding cuteness, poured on the gooey drama at the piano during the ballad "A Little Bit Longer," which also paid homage to Carole King's "So Far Away" (something for the folks holding their ears).

Opener Demi Lovato, who seems every bit as charismatic as that Miley, bounded out to join them for "This Is Me," adding to the girl power and eye candy, which was plentiful throughout. There were lasers and foam on "Tonight," a death-defying high riser trick and cellphone fantasia on "Hello Beautiful," and a stage all ablaze for the climactic "Burning Up."

I was hoping for at least one of the two semi-legitimate rockers from the new album -- "One Man Show" or "Got Me Going Crazy" -- but it's safe to say that the little girls and their moms or dads got their money's worth and more out of this brotherhood of Disney stars.