A fan attending Tool's show in Los Angeles Tuesday could barely control his excitement over getting close to the stage -- not realizing he'd been chatting with a bona fide rock legend in the audience: Eddie Van Halen. Van Halen was taking in the Staples Center show with his son and former bandmate Wolfgang when the unidentified fan handed the legendary guitarist his cell phone. "A guy asked my dad if he could take a picture of him with the stage behind him, having no idea who he just asked," Wolfgang Van Halen tweeted on Wednesday. "That was my favorite moment from the Tool show last night." Van Halen complied, taking the photo -- while Wolfgang took a picture of his dad doing it. Have you ever run into a celebrity in public? When you meet a star in person, is the experience usually what you expected -- or is it disappointing?