Tickets are now available online for a wide range of performances and experiences during the celebration through Pella Historical Muesums. The free Feesthouden shows each evening feature stage performances on the Tulip Toren May 2nd through 4th, including: Thursday Evening – Bridges 2 Harmony Gospel Choir. They will play classics by Duke Ellington and Shorty Rogers as well as contemporary tunes by Iowa composers such as Michael Conrad and Steve Shanley.