Stars including Tony Bennett, Kelly Clarkson, Matchbox Twenty and Carlos Santana are teaming up to play a benefit concert for at-risk children in Las Vegas in October (07). The 12th annual event, which will also feature comedian Jerry Seinfeld, has been assembled by The Andre Agassi Charitable Foundation (AACF), which raises funds for at-risk youth in southern Nevada, where tennis ace Agassi was raised. The concert takes place at the MGM Grand hotel and casino in the gambling mecca on 6 October (07).