NORTH TONAWANDA, NY--The king of Rock and Roll may have left the building, but his spirit continued to live on Saturday night in North Tonawanda.

Hundreds of people came to the Riviera Theatre to see a performance by Irv Cass, who has won several contests as an Elvis impersonator.

The concert followed a showing of a documentary film that chronicled the 1999 "Images of Elvis" competition in Memphis that Cass won. Officials from the Riviera say the show was sold out.