Grant is known for her work on the television talent contests Fame Academy, Comic Relief Does Fame Academy, and Pop Idol, and the children's television series Carrie and David's Popshop, together with her husband and colleague David Grant. She first came to fame as a singer in her own right with the pop group Sweet Dreams in 1983, when they represented the United Kingdom at the Eurovision Song Contest that year with the song "I'm Never Giving Up".
Grant is recognized for her work on television talent shows like Fame Academy and Pop Idol, as well as children's programs such as Carrie and David's Popshop. She initially gained recognition as a singer in 1983 with the pop group Sweet Dreams, who represented the United Kingdom at the Eurovision Song Contest that year with their song "I'm Never Giving Up".