Guns N' Roses welcomed ZZ Top's Billy Gibbons to the stage on Friday to perform a special version of "Patience" in Houston, Texas.
The rock group is currently on their Not In This Lifetime tour, which commenced in April 2016 and will continue throughout 2018, with a string of European dates recently announced.
ZZ Top had opened for Guns N' Roses previously during a portion of the current tour.
The final show of the North American leg of the Not In This Lifetime tour will be on Nov. 29 in Los Angeles.
Watch the performance below: