Question: In what year did a mid-sized auditorium, owned and operated by Caesars Entertainment Corporation first host Justin Timberlake's annual concert to benefit the Shriners Hospitals for Children?
Sentence (from "Shriners Hospital-Canada"): It overlooks downtown Montreal, and is close to Montreal General Hospital of the McGill University Health Centre (MUHC) hospital network, with which it is affiliated.
Relevant evidence: No