 He had a solo top 10 single with "Summertime City" in 1975.Art Garfunkel appeared in the chart for the first time in 1975 without his singing partner Paul Simon, topping the chart with "I Only Have Eyes for You".John Lennon was a highly successful musician in the line-up of The Beatles, as well as with his wife Yoko Ono and the Plastic Ono Band prior to 1975, when he released his top 10 debut single "Imagine", which peaked at number six that year, and later reached number-one following his assassination in December 1980.