Zac Efron layered his denim and leather jackets as he went through security at LAX yesterday afternoon. The actor was back on the West Coast for a few days after sitting front row with Kellan Lutz and Joe Jonas at the Calvin Klein show during NYFW. He'll be heading back to the Big Apple soon to shoot his cameo in New Year's Eve. He was focused on his fitness during his short time in LA and showed off his California pride while he got in a workout last week. Zac also made time to attend Rihanna's 23rd birthday bash on Sunday after she performed at the NBA All-Star game.