John Farnham has expressed his heartbreak at the loss of his former manager and great friend, Glenn Wheatley.

“Devastating news… there are no words, our hearts are broken,” he tweeted.

“Our love and thoughts to all who loved Glenn, especially his family… he was one of a kind, special to so many… #glennwheatley”

Wheatley famously mortgaged his house to bankroll Farnham’s 1986 comeback album Whispering Jack, which went on to become one of the biggest-selling Australian albums of all time.

The album would revitalise Farnham’s career and the last song added to it – You’re The Voice – became an Australian pop anthem.

Glenn Wheatley died on Tuesday after being hospitalised with COVID-19 over the Christmas period. He was 74.

He is survived by his wife Gaynor, son Tim and daughters Samantha and Kara.