Angus Young joined Guns’n’Roses on stage on Friday (February 10th) night at Sydney, Australia and played “Riff Raff” and “Whole Lotta Rosie”. There were rumors going round about that gueat appearance, as well as that the band had rehearsed Rose Tattoo’s “Nice Boys”. However, Duff McKagen revealed in the social media that Guns’n’Roses met Angus accidentally at the airport. Young wasn’t wearing his trademark school uniform…

https://www.youtube.com/watch?v=HnVnA7BbxPA