Dave Grohl showed up on stage during Guns N' Roses' concert, and effectively ended one of the biggest feuds in alternative rock history.
Grohl surprised the crowd in Tulsa, Oklahoma for "Paradise City," after being introduced by Axl Rose.
Back in their heyday, Nirvana and GN'R constantly traded insults back and forth and battled for musical dominance.
Over the years, the two bands seemed to patch up their differences, especially when Dave Grohl let Axl use his throne to perform in after he broke his foot.
With Grohl taking the stage next to Slash and company, it appears it's all water under the bridge now.