Move over, Jennifer Aniston and John Mayer -- there's a new reunited couple on the scene. Mandy Moore and DJ AM are back together after Mandy rushed to her ex's side after his September plane crash. "Since the accident, it's blossomed into something again," an insider tells Us Weekly. "Mandy said, 'I like this guy a lot and I want to see where it can go again. Life is too short to not be with someone you really care about.'" Seconds another AM pal, "When you go through what Adam went through, you need people you love and people who love you. He will never stop loving her."

Mandy and AM aren't keeping their relationship a secret either! Last week, they were spotted getting cozy at an event in Beverly Hills. "He was holding her hand, and they were rubbing each other's backs," a spywitness says. Aw! We hope it sticks this time around…