We personally like execution by John Travolta the best. He sang this funk + pop song in the movie Grease, for the first time. There he was young and non-engaged and had a great voice, but most of all, he achieved success in the field of acting, not dancing, as he predicted and wanted. This song also has many covers and it is difficult to say which one of them turned out better, simply because it is a matter of taste.
Reference:Hal Jeffrin on Twitter