What makes a great hip-hop song?
Two-date California fest will also feature Afrika Bambaataa, Big Daddy Kane, EPMD, Rakim, Warren G and others
Singers will take the stage together on different sides of the country
'It’s a very emotional night for us' says Wish Bone
'Virtual performances' will be part of festival's 10th anniversary
'Phifty Caliber Kush' now available to patients in Michigan
At Rock the Bells announcement in L.A., more headliners promised
Missy Elliott and Timbaland will also anchor hip-hop fest