concerning the first year, and not including "rock around the clock" who sang the happy days theme sang at the end of the show?...and the beginning sometimes --ie--the drag race episode weher fonzie races ralphs car agaisnt skizzy, the singer starts the show with vs. 2 "gonna cruis her around the town, show everybody what i found, rock and roll with all my friends..." who sang this and is there a full recording anyplace? (this is not the pratt and mcclain version) must be a studio singer?...thanks..