Smart are promoting this gig at Koh Pich concert hall. If you go to one of the bigger Smart shops in PP, they will give you two tickets if you have Smart VIP status (requires a $5 top-up if you don't have it already) and you do a $2 top-up there and then and you let them put you on the $2 weekly package that gives you calls, texts and oodles of 4G internet. As far as I can tell, you can cancel the $2 plan after one week. Oh, and you get a T-shirt and a cloth bag.
This is what they call the Green Package. You can pay more for the Premium Package and that gets you nearer to the stage.