ITUNES FESTIVAL: Maroon 5 + Matthew Koma

These funky soft-rockers from LA may tout bland, middle-of-the-road fare but they're unbelievably popular, as evidenced by the success of their three high-charting albums and consistently sold out shows, despite VIP tickets costing a couple of nifties. They must be doing something right. To find out what, catch their show tonight as part of the iTunes Festival. US pop gremlin Koma plays a support slot. Enter to win tickets at itunes.com/festival.