An early celebration of Frank Sinatra’s 100th birthday took place at the 14th annual Sapphire Ball on Saturday night. His son, Frank Sinatra Jr., sang a medley of the iconic crooner’s memorable tunes for an appreciative audience of more than 1,000 guests gathered at the John S. Knight Center.There was magic in the air as co-chairs Alyssa and Rob Briggs welcomed guests for the evening.