Celebrities are good at so many things. They entertain us with their beauty, style, charm and frequent intoxication. They create wonderful movies, music and sex tapes. They save the world by adopting, and crazily naming, every orphaned child they meet. They even tell us what to buy, what to eat and what to wear!

Why, then, must they be good at gaming as well? Why must we always shove controllers and remotes and consoles into their unsuspecting, delicately manicured hands? Why must we constantly force them to mingle and pose with giant, bobble-headed cartoon characters? Why must we ask them to play and promote something of which they clearly have no interest or knowledge?

As these surreal examples of celebrity "gaming" prove, we shouldn't. The results are rarely flattering... and NEVER believable.

1. Christina Aguilera

Here's what we mean. Couldn't someone have told poor Xtina that the Nintendo GameCube is, in fact, NOT a fashionable new handbag and, despite coming in three stylish colors, should NOT be used as such? An agent or publicist perhaps? Famous people can't figure this stuff out on their own, you know!

2. Zac Efron

The 360 controller and Bungie wristband tell us Zac is a real gamer. The upturned collar, designer t-shirt and sun-kissed bangs tell us otherwise. Our suspicion? The star of High School Musical and Hairspray is one frag away from breaking into song, dance or possibly both.

One of these people is real. One is not. Can YOU spot the difference?