The Knights Chamber Orchestra from New York and the University of Georgia Hodgson Singers along with four professional soloists will combine their talents for a rare complete performance of Handel’s Messiah. The concert will begin at 7 p.m. Saturday, Dec. 20, and 2 p.m. Sunday, Dec. 21 in Hodgson Concert Hall on the UGA campus in Athens. Tickets $32 to $47 and are discounted for UGA students.