Guns N’ Roses are in the midst of a multi-night run around Australia as part of their “Not in This Lifetime” tour, and the iconic American rockers got some help from a member of Australia’s biggest rock export, AC/DC, for each of GNR’s two nights at ANZ Stadium in Sydney.

Guitarist Angus Young, co-founder and longtime face of AC/DC, joined Axl Rose, Slash and company for two songs from his own band, playing both “Whole Lotta Rosie” and “Riff Raff” on Friday and Saturday nights in Sydney. The rest of both setlists featured GNR staples like “Welcome to the Jungle,” “Sweet Child O’ Mine,” “Paradise City” and their cover of Bob Dylan’s “Knockin’ on Heaven’s Door,” plus more covers of Wings “Live and Let Die,” Misfits’ “Attitude,” The Who’s “The Seeker” and more.

Watch a video of Young playing the two AC/DC songs above. Guns N’ Roses continue their world tour on February 14 at Melbourne Cricket Ground.