I can see the eagerness in knowing the answers so I won't delay
What caught my eye with these songs is that I have all of them in my music collection.
Songs that have hit number one by different artists
"Mona Lisa" by Dennis Day/
Nat King Cole (1950) and Conway Twitty (1959)
"Unchained Melody" by Al Hibbler/Les Baxter (1955) and
The Righteous Brothers (1990)
"Que Sera, Sera (Whatever Will Be, Will Be)" by
Doris Day (1956) and
Normie Rowe (1965)
"Can't Help Falling in Love" by
Elvis Presley (1962) and UB40 (1993)
"Walk Right In" by The Rooftop Singers (1963) and
Dr. Hook (1977)
"Venus" by
Shocking Blue (1970) and Bananarama (1986)
"In the Summertime" by
Mungo Jerry (1970) and The Mixtures (1970)
"American Pie" by
Don McLean (1972) and Madonna (2000)
"Killing Me Softly with His Song" by
Roberta Flack (1973) and The Fugees (1996, entitled Killing Me Softly)
"Stayin' Alive" by
Bee Gees (1978) and N-Trance (1995)
"Funkytown" by
Lipps Inc (1980) and Pseudo Echo (1986)
"What About Me" by
Moving Pictures (1981) and Shannon Noll (2004)
"The Power of Love" by
Jennifer Rush (1985) and Celine Dion (1994)