Vocal Pop is considerably different than traditional pop, which is largely comprised of standards and performed by skilled singers like Frank Sinatra and Tony Bennett. Vocal pop is considerably lighter, falling somewhere between pop and easy listening. Vocal pop's heyday was in the late '50s and early '60s, before rock & roll had completely infiltrated all areas of popular record making. In those days, clean-cut groups like the Four Freshmen sang sweet, romantic, and innocent songs that were given lush productions and arrangements. Vocal pop primarily consisted of similar groups and sounds -- the material was lighter than traditional pop, but sonically it had more in common with those standards than it did with rock.