Clive Davis' starry Pre-Grammy Gala. Attendees to include: John Mayer, Magic Johnson Quincy Jones, Ne-Yo

Music mogul Clive Davis signed Janis Joplin and Bruce Springsteen, fostered the careers of Aretha Franklin and Barry Manilow and brokered countless hits by A-listers. But even his résumé’s star inventory can’t measure up to the celebrity count of his annual pre-Grammys bash. Via USA TODAY: