JLS

With 10 million albums sold, a reputation for shirtlessness, and countless arenas booked solid, how could JLS go wrong? The answer is they can't. The foursome whizzed their way through their string of hits at the O2 in London, beaming and bouncing all the way.

The set included their biggest singles, "Everybody in Love" and "Beat Again," although it was sometimes hard to hear them over the screaming girls. The arena is massive but they've got the personality and showmanship to fill the place up. Aston kept the crowd excited with his backflips, but Oritsé, JB, and Marvin got their turns in the spotlight, too. They really made an effort to get the audience involved.

There was lots of chatting and banter between the boys, and at one point, they whipped out the stools and got some girls from the crowd up on stage with them. The show was a whirlwind of lights, costume changes, and theatrics, but the guys have genuine talent to back up the spectacle. The story has a bittersweet ending since JLS won't be back for more, but they certainly give a new meaning to going out with a bang. If they were to reunite, you can bet there'd be plenty of people, including me, who'd go running back for more.