In this Oct. 3, 2015 file photo, The Mormon Tabernacle Choir sings during the opening session of the two-day Mormon church conference in Salt Lake City. The church announced on its website Thursday that the 360-member volunteer choir will sing at Trump’s swearing-in ceremony on January 20. less FILE – In this Oct. 3, 2015 file photo, The Mormon Tabernacle Choir sings during the opening session of the two-day Mormon church conference in Salt Lake City.