Gone Mainstream? No, Just Eclectic

Yesterday at the dance/movement class my swinging teacher played a CD by someone whose name she couldn't pronounce, so I just attempted to mimic her movements and forgot about it. Suddenly I was dancing to a young Frank Sinatra? No, it was definitely Mel Torme? But wait, he had just a touch of Elvis in him. Who on earth? Michael Bublé (Amazon can't spell his name either). I know I risk losing my street creds and my cool creds and my egghead creds, but what's eclectic if it doesn't include a little mainstream? Listen to some samples and tell me what you think.