Fans had earlier this year gotten a glimpse of Roger Federer on a big stage and no it was the Centre Court of Wimbledon or the Arthur Ashe Stadium.

The retired Swiss icon was instead spotted working the shaker for British rock band Coldplay during one of their concerts in Zurich, Switzerland. The band was performing at the Stadion Letzigrund, with Federer in attendance.

Recalling the experience during an interview at the Laver Cup, Federer said he enjoyed the moment even though he’s perfectly happy being away from the anxiety that comes with being in the spotlight.

“Of course, I enjoyed it after,” Roger Federer said. “But, you know, I don’t need sometimes those anxiety moments anymore. I’m just happy and quite content to be away from it all, but I finish on top, you know, this is my music career. I ended it right there, I dropped the mic.”

Speaking about using the shaker, Federer said he had no idea what he was doing as he was just moving his hands with a smile on his face.

“Yeah, I don’t know what it was doing I was I was moving my hands and smiling and yeah just being me,” the Swiss legend said.