Rapper Young Jeezy was searched backstage at the Highline Ballroom on Monday. Jay-Z and Kanye West performed alongside the Atlanta-based artist to celebrate his platinum-selling debut album, “Let’s Get It: Thug Motivation 101.” Before the trio went onstage, concert security searched Jeezy’s gun case. A spy said there were no firearms in it, but they saw what looked like a load of jewels. Jeezy seems to be on cops’ radar — he was ticketed this weekend in Atlanta in his flashy Ferrari for failing to signal. A rep for Jeezy didn’t get back to us.