Alicia Keys, Jay-Z, Sade to Perform at Black Ball Concert

You know what this gestue means: they're No. 1. Jay-Z and Alicia Keys made a joint trip to the top on Nov. 28, 2009 with "Empire State Of Mind."

Alicia Keys will bring Jay-Z and Sade out to perform at the seventh annual Black Ball concert, taking place Sept. 30 at New York's Hammerstein Ballroom. The event will raise money for Keys' Keep a Child Alive foundation, which helps provide AIDS/HIV treatment and care to children and families in Africa and India.

"Sade? Jay-Z? Both icons and both major influences of mine," Keys said in a statement. "I am overwhelmed by their generosity in helping us continue the tradition of making the Black Ball the best fundraiser in NYC. There are more surprises coming up! Stay tuned!"

The Black Ball event has been raising millions of dollars for years with past performers such as David Bowie, Justin Timberlake, Chris Martin, Common, John Mayer, and Bono. Besides musicians, politicians and entrepreneurs like Bill Clinton and Richard Branson have helped donate money to the foundation. For tickets for the event and more information, visit keepachildalive.org.