The rockers joined Duran Duran, Stereophonics and Paolo Nutini for a huge gig in London’s Hyde Park to coincide with the official bash.
Speaking backstage, Bangor-born Lightbody said he felt humbled at being asked to take part to represent his home country. He said: “To play an event like this is incredible.
“The whole of London for the last few days seems to be just obsessed with it and I've got caught up in it as well. It's amazing.
“It's the only thing I'll ever represent Northern Ireland at, unfortunately. My 100m sprinting days are long past me —no challenge to Usain Bolt, unfortunately.”
He added: “We were asked to represent our county; we're not going to say no to that.
“The eyes of the world are looking in on our nations and you've got to stand up for that.”
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