Leslie Gore sang "Blue Navy Blue"
Michael Jackson sang the song "Blue Gangsta."
B.B. King sang "How Blue Can You Get?" on a 1977 Sanford & Son episode called "Fred Sings the Blues."
George Harrison
Deep Blue Something
Blue Magic
Barry Blue
Al Martino
the blue boys.
eddy arnold
blue tree
If you mean "Mr Blue Sky", it was the Electric Light Orchestra