Social media was flooded with people trying to guess who the mystery guests were, with suggestions ranging from action stars Clint Eastwood and Bruce Willis to former South African cricketer Graeme Smith.
"A sketchy Bruce Willis? Would not put it past Warnie to include John McClane in his BBQ," one person wrote.
"Purple Shirt in the Warnie photo has to be Graeme Smith. Look at the jawline," another tweeted.
As it turns out, the full list of party guests had been revealed by the spin king himself, during an interview for the 'Great Australian Lives' podcast - hosted by Channel Nine newsreader Jo Hall.
Warne rattled off the list, which includes: Bruce Springsteen, Mick Jagger, Michael Clarke, Frank Sinatra, Muhammed Ali, Elvis, John F Kennedy and a seemingly topless Angelina Jolie.
In a video of the documentary on YouTube, the Tinder-loving star said the painting shows him 'chilling in the corner' with Springsteen - who even has a cricket ball in his hands, as Jagger sits by the pool and Sintra and Ali belt out a tune together.
The complete list, pictured left-to-right in the painting, is: Bruce Springsteen, Mick Jagger, Frank Sinatra, Muhammed Ali, John F Kennedy, Marilyn Monroe, Michael Clark, Chris Martin, Jack Nicholson, Joe Hachem, James Dean, Elvis, Sean Connery, Jason Warne, Angelina Jolie, Anthony Hopkins, Tony Hachem, Dimitri Mascarenhas and Aaron Hamill.