Talking to The Huffington Post UK in London about the line-up, the 'Ordinary People' singer said: "It's a pretty dynamic group of people and I'm proud to be part of it."
"We have a very high mutual respect for each other," says Grammy Award-winning singer John Legend about Beyoncé, whom he's teaming up with for a huge London concert.
Legend, who is on the same record label as Beyoncé and says he knows her "socially", confessed he would love to duet with her on stage at the show. With an impressive back catalogue between them, what would they sing?
"I don't know, I'll have to talk to Mrs Carter about that," he laughs.
According to Legend "it makes perfect sense" to stage the concert in London. "Why not London? London knows how to throw a good party, as the Olympics proved recently, and it's such an international city that's connected to so many of the cities we want to work in."