Olivia Newton-John was a British and Australian singer and actress. She was a four-time Grammy Award winner whose music career included 15 top-ten singles, including 5 number-one singles on the Billboard Hot 100 and two number-one albums on the Billboard 200: If You Love Me, Let Me Know (1974) and Have You Never Been Mellow (1975). Eleven of her singles (including two Platinum) and 14 of her albums (including two Platinum and four 2× Platinum) have been certified Gold by the Recording Industry Association of America (RIAA).