Elaine Paige's big hit from Cats was "Memory", a song she performed as Grizabella the Glamour Cat. The song is one of the most popular in the musical, and has been covered by many other artists. Paige's version of the song was released as a single in 1981 and reached number one in the UK charts.
The Fascinating Journey of Elaine Paige: A Quiz on the Legendary English Songstress