In no particular order they are:
“Love Is Strange”–Mickey and Sylvia–how can you NOT fall for that opening hook?
“The Lion Sleeps Tonight”–The Tokens–the opening vocals (“wee….eee…..eee….um….wee….eee…eee…eee…..um….wee…um…uh….way”) in this classic do what the opening guitar hook does in “Love is Strange”
“American Pie”–Don McLean–Nothing like it, and nor will anything ever be like it
“The Long and Winding Road”–the most beautiful song ever recorded by the Beatles–even more beautiful than “Yesterday”. Their list hit before their breakup.
“Classical Gas”–Mason Williams. Perhaps the last good instrumental work–and released during the peak of the classic rock era. That rare breed that fits into the playlist of any popular music format.
“Downtown”–Petula Clark. Women were part of the British invasion too!