Dave,
He was so "big" here in the late 70s, he played the MCG. (Melbourne Cricket Ground). That's big. He did a lot of open venues because he sold so many tickets.
I saw him at the old Lang Park now Suncorp Stadium (Rugby League). When people like Bowie played Lang Park, the whole of inner city Brisbane could hear and feel it back in those days. I saw Fleetwood Mac there as well (Tusk era). Great times.
My memory is playing tricks on me though. I swear I saw him with David Sanborn the incredible saxophonist, but I may be confused. hmm, maybe that was Lou Reed. Can't remember.