Possible Clues:

• Gathering of the Juggalos band, to fans
• Horrorcore hip-hop group whose fans are called Juggalos, for short
• Breathtakingly juvenile rap-rock band, for short
• 'Gathering of the Juggalos' band, for short
• Gathering of the Juggalos band, for short
• Rap group with trademark makeup, for short
• Gathering of the Juggalos group
• Band that headlines the annual 'Gathering of the Juggalos' festival, for short