The Beantown Swing Orchestra is a Boston-based 18-piece big band that was formed in 2006 by Frank Hsieh. Initially specializing in performing the classic dance music from the Swing Era, the band has since expanded its repertoire to include transcriptions of Frank Sinatra's big band arrangements, and most recently its own arrangements of popular and original songs. In 2007, the Beantown Swing Orchestra featured performer Jonathan Meath, who performed as Santa Claus in three shows. Since 2007, all of the band's charts have been transcribed or arranged by trumpeter Danny Fratina. The group's best-known vocalists are fellow American Idol sixth-place finishers Siobhan Magnus and John Stevens, although it also features other various female vocalists including American Idol semi-finalist Jen Hirs