Hours after Guns N’ Roses’ much anticipated Coachella reunion set was nearly overshadowed by the announcement that Axl Rose would be joining AC/DC as their replacement lead singer, guitarist Angus Young joined GN’R onstage Saturday at the fest to give a sampling of what AC/DC with Rose will sound like.

“Since I can’t run around for you, we’re gonna bring out a friend, put a little life into things for us,” Rose, who’s still confined to Dave Grohl’s throne due to a fractured foot, told the audience before welcoming Young to the stage. With the AC/DC legend alongside “classic”-era GNR members Slash and Duff McKagan, the group performed “Whole Lotta Rosie” and “Riff Raff,” a pair of early AC/DC cuts that were once live staples for GN’R.

Young and AC/DC previously headlined the 2015 Coachella festival before launching their Rock or Bust Tour, which was abruptly postponed in March after longtime singer Brian Johnson revealed that doctors recommended he quit touring or risk “total hearing loss.” With 20 dates – 10 in Europe, 10 in the U.S. – remaining on the band’s trek, the rest of the group pledged to fulfill their obligations with a replacement singer, fueling rumors of Rose’s participation.