Robert Plant joined Roger Daltrey on stage at the Royal Albert Hall in London on March 24 to perform The Who’s “Baba O’Riley” along with Eddie Vedder, Glen Hansard, Kelly Jones and Simon Townshend.

The group performance, with Plant and others on stage for the song’s backing vocals, came as the last song for the finale of the Ovation series of concerts in benefit of the Teenage Cancer Trust. The show was the final time Daltrey curated and hosted the charity concert series.

Watch Plant on stage with Daltrey and others here:

Earlier in the evening, Plant performed along with Saving Grace:

Before his performance, Plant paid tribute to Daltrey, saying: “The purpose of this regime that you’ve created is spectacular. And I want to take you back to about 1965. I was 16 years old, I was at [unclear] Hall watching this fucking monster group. I didn’t really realise at the time, I just saw you there, this golden god and I just went ‘How do you do that?’”

“You and I, there’s only maybe a few frontmen now who don’t play guitars but I watched you all the way through time, side by side we’ve crossed paths so many times,” he continued.

“I was at the TCT, the US thing that we did in LA. I was at the first night that, the Tommy thing, it came out in Fillmore East and I ate all your sandwiches while you were working. And I’m just so grateful and glad that we could be here.”

Elsewhere during the evening, Plant was photographed with Daltrey, Paul Weller, Vedder and Jones:

Plant was also photographed watching Vedder’s solo set during the evening: