Talk about a scary encounter! While performing a Maroon 5 concert at the Honda Center in Anaheim, Calif. last night, Adam Levine was grabbed by a fan after the young female rushed on stage to get a closer look at the hunky singer. An eyewitness told E! News the confrontation went down towards the end of the show while the 36-year-old rocker was belting out the band's hit song "It Was Always You." The young girl tried hugging him for a few seconds before she was escorted off stage by a security person.??