Ross Andrew Hannaford was an Australian musician, active in numerous local bands. He was often referred to by his nickname "Hanna". Widely regarded as one of the country's finest rock guitarists, he was best known for his long collaboration with singer-songwriter Ross Wilson, which began as teenagers, with The Pink Finks and forming the seminal early '70s Australian rock band Daddy Cool. Hannaford died of cancer after being diagnosed a year earlier.

"Eagle Rock" is the debut single by Australian rock band Daddy Cool, released in 1971 on the Sparmac record label. It went on to become the best-selling Australian single of the year, achieving gold status in eleven weeks, and remaining at No. 1 on the national charts for a (then) record ten weeks. "Eagle Rock" also spent 17 weeks at the No. 1 spot on the Melbourne Top 40 Singles Chart. The song was re-released by Wizard Records in 1982, and reached No. 17 on the Australian singles chart.