Tempe Sister Cities is hosting The Regensburger Domspatzen (Regensburg Cathedral Choir). The world-famous boys choir plays a very important role in the cultural life of Regensburg. They have been called the “Singing Ambassadors of the city”. The Domspatzen will be performing Wednesday, April 23, 2014 at the Tempe Center for the Arts. Tickets are available online-click here..