For their final night at the ANZ Stadium in Sydney, Australia, Guns N' Roses dug deep into their history. They covered Rose Tattoo's "Nice Boys," which they originally recorded for their Live ?!*@ Like a Suicide EP, with some help from Rose Tattoo's lead singer, Angry Anderson.

As you can see in the video above, Anderson sings the first verse, with Axl Rose taking the second and a dual lead vocal for the chorus, bridge and third verse. Slash contributes slide guitar.

It's the first time on the "Not in This Lifetime" reunion tour that they've broken out the song, with Setlist.fm saying that they hadn't played it since April 17, 2014 at the Centro de Eventos do Ceará in Fortaleza, Brazil. The last time a Guns N' Roses with Slash and Duff McKagan performed it was June 26, 1993 at the Olympiastadion in Munich, Germany.

Setlist also notes that, as had been the case yesterday, Angus Young of AC/DC showed up towards the end of the main set for "Whole Lotta Rosie" and "Riff Raff." This morning, Slash acknowledged the success of the dates when he tweeted, "Hey Sydney, thanks for 2 fn awesome nights! Amazing crowd tonight too! Thanks to Angus & Angry for joining us. See you again soon! iiii]; )'"

Guns N' Roses have three more concerts in Australia before wrapping up this leg with shows in Singapore, Thailand and Dubai. Then, in late May, they'll bring the reunion to Europe for six weeks before heading back to North America for another six weeks.