Mikkeller (Denmark, U.S. & wherever he feels like it) has readied the first round of Spontaneous beers for 2013. The series features a base lambic beer (aged in oak) with a special fruit addition for variety and flavor depth. Above you see SpontanCassis, SpontanRosehip, SpontanPeach, and Spontangooseberry.
Look for these on shelves stateside this summer.