The Saints great played the didgeridoo in the pre-game ceremony for their match against North Melbourne on Sunday at Marvel Stadium.
Cousin Fabian Winmar joined him in the didgeridoo duet.
Winmar, whose middle name is Elvis, also delighted Saints fans during COVID-19 lockdown two years ago when he broke out the didgeridoo in a mid-game online forum.
The Saints are wearing Winmar's Indigenous-themed guernsey in Sir Doug Nicholls round for the second year.
The guernsey features a silhouette of the iconic moment in round four of the 1993 season when Winmar raised his jumper and pointed to his skin after the Saints had a famous win over Collingwood at Victoria Park.
Magpies fans had been racially abusing Winmar and teammate Gilbert McAdam and his defiant gesture is an iconic moment in Australian sport.
A statue commemorating the moment was unveiled outside Perth's Optus Stadium three years ago.
Winmar, 56, played 230 games for St Kilda between 1987-98 and another 21 for the Western Bulldogs in 1999.
He was a two-time All-Australian and also won the Saints' best and fairest twice, as well as being named on a wing in the St Kilda team of the century.
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