First thing: DON'T POST OTHER PEOPLES PHOTOS WITHOUT PERMISSION!
As far as the shot goes, the sun is behind the band (obviously) creating a nice back light. The members look to be lit with studio lights or strobes from the front. As far as how they achieved that effect in processing, there are tons of methods you could employ to achieve that effect. There are also quite a few photo editing programs that would enable you to get that effect. I would spend some time watching youtube photoshop tutorials on curves/layers/adjustments/levels.