This Sunday, April 19, highly esteemed jazz group Happy Apple will perform in Harper Hall. The show starts at 9 p.m. Happy Apple was formed in Minneapolis in 1996, and is composed of David King on drums, Michael Lewis on saxophones and Erik Fratzke on bass. The band has released eight albums since its formation, each of which was greeted with much critical acclaim. Another interesting aspect of Happy Apple is the “super group” aspect of the band, as all three members are active in several other notable bands. King is most notable for drumming with The Bad Plus, Halloween, Alaska and with artists like Mason Jennings and Haley Bonar. Lewis was most recently seen playing bass in Andrew Bird’s touring band, but he is also active in Fat Kid Wednesdays and Alpha Consumer. The show will be free, but visitors are urged to arrive early in order to secure a seat in Harper Hall.