The stars of MTV’s “Jersey Shore” don’t travel well. A fellow passenger on Friday’s American Airlines red-eye from LAX to JFK says the crew — led by Mike, Snooki and JWoWW — acted “obnoxious, pushy and entitled” before boarding. Escorted by four TSA workers to the front of security, “Their speaking voices were never quieter than a yell,” said our witness. “As other passengers waited, scanners were constantly being set off by some newfound piece of metal jewelry they were covered in. The whole process of getting them to their departure gate was treated as if President Obama was visiting Iraq.” Meanwhile, Diana Ross, often known as a diva, was “down-to-earth and kind to anyone who came up to her,” as was “30 Rock” hunk Cheyenne Jackson, who chatted with the Supremes legend as the “Jersey Shore” team took their seats in coach. “Their behaviors could not have been more different,” said our source.