Coachella foes: Kelly Osbourne, Paris Hilton

Paris Hitlon attends the Kari Feinstein Music Festival Style Lounge at La Quinta Resort and Club in La Quinta, California. (Photo by Getty Images)

(Photo by Getty Images)

(Photo by Getty Images)

Nicky and Paris Hilton attend NYLON and Olay Fresh Effects present Neon Carnival with GUESS in Thermal, California. (Photo by Getty Images)

Nicky and Paris Hilton (Photo by Getty Images)

Paris Hilton watches Empire of the Sun perform during day 2 of the 2014 Coachella Valley Music & Arts Festival at the Empire Polo Club. (Photo by Getty Images)

Kelly Osbourne, Dingo and guest attend the NYLON and Olay Fresh Effects Present Neon Carnival with GUESS in Thermal, California. (Photo by Getty Images)