At Armani Exchange and 944's annual Neon Carnival, old-fashioned rides and cotton candy paired with some tequila helped the famous and musically inclined party throughout the evening.
Rihanna showed in a camouflage trench and crimson locks, catching up with Usher while "Twilight" hunk Kellan Lutz circulated. "Glee" boys Mark Salling, Chord Overstreet and Harry Shum Jr. ran around together, as did "Scream 4" gal pals Emma Roberts and Marielle Jaffe.
New "Hunger Games" lead Josh Hutcherson caused quite a stir, as did a single Penn Badgley, rock siblings Jack and Kelly Osbourne, designer Alexander Wang, and Paris and Nicky Hilton.
Los Angeles nightlife denizen Brent Bolthouse this year again produced the carnival, which served as the launch for AX's Solar Remix sunglasses.
The crowd enjoyed a massive neon ferris wheel, bumper cars, prize giveaways and plenty of libations. Also spotted: acting couple Diane Kruger and Joshua Jackson, models Alessandra Ambrosio and Chanel Iman, DiCaprio's BFF Lukas Haas and "Red Riding Hood" guy Shiloh Fernandez.
-- Matt Donnelly
Photo: Usher and Rihanna at Armani Exchange's annual Coachella carnival. Credit: StarTraks