Valli and producer Bob Gaudio now set up a dual career, with Valli recording for Private Stock and a new Four Seasons group for Warner Brothers Records. Valli had his first solo number 1 in 1975 with My Eyes Adored You, followed by Swearin' To God and a revival of Ruby And The Romantics' Our Day Will Come. In 1978 he sold two million copies of the Barry Gibb -composed theme song from Grease. The follow-ups, Fancy Dancer and Where Did We Go Wrong (a duet with Chris Forde) sold poorly and in 1980 Valli had a series of ear operations to cure his increasing deafness. He subsequently rejoined the Four Seasons and enjoyed further success when Big Girls Don't Cry was included in the movie Dirty Dancing. In 1990, the Four Seasons were inducted into the Rock And Roll Hall Of Fame, and for the rest of the decade Valli continued to lead the group on the lucrative oldies circuit.