Veteran British pop star Leo Sayer has split from his partner of 22 years DONATELLA PICCINETTI. The WHEN I NEED YOU singer, 58, has moved out of the couple's home in Sydney, Australia. The pair had an "open relationship", with British rocker DONNY TOURETTE claiming to have slept with Piccinetti last year (06) while she was dating Sayer. Forty-six-year-old Piccinetti, who is also Sayer's manager, says, "We will still work together but will live separately."