The gay vocalist, trained at the Berlin Jazz Institute, has a penchant for Charleston and ballroom swing in the tradition of the young Frank Sinatra. Björn Bergmann and his accomplished band delight galas and city festivals far and wide with this style, but over the years he has also written a few original songs that combine his established style with frank, gay lyrics. All of these songs are featured on Bergmann's debut album, "First World Problems," and the accompanying music videos are enticing appetizers for the record release concert at Luftschloss Tempelhof.