Lady Gaga performed John Lennon's "Imagine" at the Opening Ceremony of the European Games in Baku.
She's touring the world alongside Tony Bennett to promote their "Cheek To Cheek" jazz record together, but Gaga flew solo over the weekend with her surprise performance of the iconic song.
"I'm extremely honored to be playing at the Opening Ceremony in Baku, and to be celebrating all of the amazing athletes who will compete in the European Games in this beautiful city."
"I had such a great time with the audience," she added. "It felt like we were in my bedroom singing songs and imagine life was more simple."
Watch it below: