Pop spotlight: Mumford & Sons

Wednesday: They weren't kidding with their single, "I Will Wait." Mumford & Sons have kept Twin Cities fans waiting a full year for a show behind their second album, "Babel," and it's been three years since they last performed in town. In that time, the British folk-rock troupe grew from indie darlings to bona-fide rock stars, with a Grammy award for best album and now a nod in Rolling Stone magazine as one of the best live bands on the road today. Only the scant Minnesota fans who saw their earlier club gigs would know if that's true, until now. Joining them from across the pond on the Full English Tour are stylish mod-rockers the Vaccines of "Post Break-Up Sex" notoriety and Bear's Den. (7 p.m. Wed. Sold out. Xcel Energy Center, W. 7th St. and Kellogg Blvd., St. Paul.)