Zac Efron and Joe Jonas
Johns PkI/Splash News Online
05/06/2011 AT 03:00 PM EDT
and Joe Jonas
– and their entourages – shared a prime table during a vaudeville-inspired performance by Beacher's Madhouse
at the Hollywood Roosevelt Hotel
. The guys greeted each other, then basically stuck to themselves and their own group of friends. Jonas sipped a cocktail with his pals – and occasionally snapped pictures with his phone. The show's producer David Arquette worked the room
, walking around and making sure that everyone was being taken care of.