Peter Allen (born Peter Richard Woolnough; 10 February 1944 – 18 June 1992) was an Australian singer-songwriter, musician, and entertainer, known for his flamboyant stage persona, energetic performances, and lavish costumes. Allen's songs were made popular by many recording artists, including Elkie Brooks, Melissa Manchester and Olivia Newton-John, including Newton-John's first chart-topping hit "I Honestly Love You", and the chart-topping and Academy Award-winning "Arthur's Theme (Best That You Can Do)" by Christopher Cross.