Talk about throngs of fans! The teenage cast of Hairspray (well, mainly Zac Efron) was greeted with a thunderous applause from screaming admirers (well, mainly teenage girls) while promoting the upcoming film at Kitson in Beverly Hills this Sunday. Personally, we think Amanda Bynes looks the cutest, but whatever! Stars Nikki Blonsky, Elijah Kelley and Hayley Podschun were also in attendance. You too won't be able to stop the beat when the movie hits theaters this Friday!