Jessica Biel turns 28 today and we'd like to give the actress a few reasons to smile. Often looking more despondent in public than Kristen Stewart, Biel should realize the following facts about her life: She's still very young. Her latest movie, Valentine's Day, opened to huge box office numbers. She can see Justin Timberlake naked any time she wants. For its ridiculousness and hotness, this bathroom sink photo will remain seared in the public consciousness forever. See point number-three again. Can you think of other reasons why this generally dour celebrity should smile more often? Wish her a very happy birthday and send them in today!