Star Tracks

The singer celebrates turning 36 by partying in Las Vegas. Plus: Justin Timberlake, Gwyneth Paltrow and more

Credit: JOhn MacDougal/AFP/Getty

Published: Friday Mar 25, 2011 | 05:00 PM EDT

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"Grenade" singer Bruno Mars channels his inner Rat Pack-er while stylishly arriving for the 2011 ECHO Awards in Berlin on Thursday.