In an interview with The Hollywood Reporter, The Eagles guitarist Joe Walsh revealed that he was recently in the studio with the Foo Fighters as the band readies their new album.

“I was a Foo Fighter for two days and played on a track of theirs that’s gonna come out. I also play guitar on a War song, so I’m a low rider and a Foo Fighter,” Walsh said. “Drew Hester, my drummer for my solo gigs, is a great friend of all of those guys, so I hooked up through him.”

Grohl and Walsh (along with Gary Clark Jr.) recently shared the stage to play “While My Guitar Gently Weeps” at the Grammy Awards tribute to The Beatles.

In the same interview, Red Hot Chili Peppers’ drummer Chad Smith also revealed that the band is currently in the early stages of their follow-up to 2011’s I’m With You. “We’re just starting to write and get in the groove of things. “It’s gonna sound like us, but it’s gonna be different.”

The Foo Fighters are visiting a variety of studios around the country to record their follow-up to 2011’s Wasting Light. The band is documenting their travels through posts on social media.