Award-winning vocalists Usher, Justin Timberlake, and Leona Lewis are in discussions to perform at a Michael Jackson tribute concert taking place at London’s O2 arena later this summer.

“Executives want to stage a touching tribute to Michael and think The O2 would be a fitting location,” a source spilled The Sun.

“Huge stars such as Leona, Usher and Justin have expressed enthusiasm about the project. It will be a celebration of Jacko’s life through his music.”

The insider added, “The producers want to avoid a sombre memorial tone and intend the evening to be a joyful event focusing on Jacko’s extraordinary legacy.”

No word on when the proposed tribute might take place.