Frankie Valli, the lead singer of the Four Seasons, launched a solo career in 1965 after several years of chart-topping success, while still continuing with the group which was re-billed as "Frankie Valli and the Four Seasons." He had actually begun as a solo, releasing the 1953 single "My Mother's Eyes" under the name Frankie Valley. His debut solo single was "(You're Gonna) Hurt Yourself" at the end of 1965, but his first solo success came with the gold-selling "Can't Take My Eyes Off You" (June 1967), which appeared on his first solo album, Frankie Valli--Solo (July 1967). This was followed by Timeless (1968). Valli discontinued solo work for half a dozen years, concentrating on the group. But he returned to solo recordings in the mid-'70s. His subsequent solo hits included the number one "My Eyes Adored You" (November 1974), "Swearin' to God" (May 1975), "Our Day Will Come" (October 1975), and the number one "Grease" (May 1978). ~ William Ruhlmann, All Music Guide