Without opening the link, I am going to guess that the Aussie group will all be wearing hats. "To the left-oi!". I am rather partial to their Sufi song.
Spot-on. I'm surprised they got away with the Sufi song, knowing how Barry Gibb is famously lacking in a sense of humour, but it's a great part of the live act. And I love The Sweetest Kick", on the same album.
Sticking with the covers theme, their performance, with Show of Hands, of "Don't You Want Me?" is also worth seeking out on YT.