photo via Carlile on Instagram

On Saturday afternoon, Brandi Carlile and Dave Grohl gave their Seattle fans a treat by playing a surprise acoustic set at Pike Place Market on the waterfront, where Carlile used to busk in her earlier days.

“Got nostalgic and decided to swing by my old busking spot @pikeplacepublicmarket with the twins and Dave Grohl,” Carlile captioned a photo of the scene in Instagram. “Honestly one of the most surreal moments of my life.”

Carlile, Grohl and Carlile’s longtime collaborators Phil and Tim Hanseroth played for 15 or 20 minutes, according to the The Seattle Times (via Stereogum), offering a cover of The Beatles’ “Let It Be” and closing with Grohl leading the way on his Foo Fighters cut “Times Like These.”

Carlile also recently posted a photo of her and Grohl hanging out at her home, with the caption “I love it when Dave Grohl comes over for dinner and ATVs… You sir are welcome to live with me…please.” (She also added the hastag #TheTwinsWillNeverBeTheSameAfterToday, to which Phil Hanseroth commented, “I will never believe we just hung out all day / had a beer- ripped the trails with this guy!!!! When DAVE GROHL pulled up in front of my house on his quad I was almost like Bradley Cooper at the Grammys in that move/ best day ever!!!!!!”)

Watch clips of Carlile, Grohl and the Hanseroths busking in Seattle below.