Mick Fleetwood and Stevie Nicks lead a superstar line up of entertainers assembled by Andre Agassi for at-risk youth. David Foster, Dennis Miller, Robin Williams, and other entertainers to be announced, will take the stage at the fourth annual Grand Slam for Children concert benefit on Saturday, September 26 at the MGM Grand Garden Arena in Las Vegas. The Grand Slam for Children benefits the Andre Agassi Charitable Foundation (AACF), a not-for-profit organization established in 1994 to assist at-risk youth in Agassi's hometown, Las Vegas. Over the past three years, the benefit has sold-out the MGM Grand Garden Arena entertaining nearly 30,000 people and raising more than $7 million for AACF charities.