Rose continued boxing after his defeat against Olivares, but, after defeats against practically unknown fighters, many believed he was done as a prime fighter. However, he was far from finished: he upset future world lightweight champion Itshimatsu Suzuki on 10 October 1970 in a 10-round decision, and once again, he positioned himself as a world title challenger, albeit in the lightweight division, 17 pounds over the division where he crowned himself world champion.
During his time off from boxing in the 1970s, Rose embarked on a modest singing career in Australia having hits with "I Thank You" and "Please Remember Me" in 1970. The song "I Thank You" was a top 5 nationwide hit, produced and written by Johnny Young and engineered by John L Sayers; it was played as a substitute to the Australian National Anthem during radio broadcasts of the State of Origin series, and other sporting events by the comedic sports commentators, Roy Slaven and H.G. Nelson.
In 1970 he won the Australian Amateur Flyweight title