Justin Timberlake hit the links for the annual Shriners Hospitals For Children Open in Las Vegas yesterday. He's been involved with the organization since 2008, though this year might be his last. The tournament's chairman, Raoul Frevel, revealed that Justin will not be participating in the Shriners Open anymore since they "tried everything we could to get him more involved with our kids and the hospitals. But it seemed that when the TV cameras weren't on, he disappeared." Justin still has obligations to fulfill this year since the competition continues until Sunday. It's just his latest charitable round of golf after also playing at the Ryder Cup Captains & Celebrity Scramble last week. Justin's one of many stars that love golf, and we're taking a look at all of them since today is National Golf Day!