Weekly Birthday Dopeness: Whitney Houston, Roger Federer, Devon Aoki And MORE!

Ever wonder how old your favorite celebrity is? Well, for some, you'll definitely be surprised.

Some musicians seem to be very mature, but really they're just babies. The same goes for actors who look not a day over 25, but have been on this earth long enough to be very seasoned at their craft.

We've seen Whitney Houston go from her best to her worst and back again. Undoubtedly one of the best vocalists to ever grace our ears, the songstress delivered one of the best soundtracks of all time for Bodyguard.

GlobalGrind would like to give a happy birthday hoorah to Whitney as she turns 48 on August 9th! We've always adored you.

After the jump, see how old the gorgeous super model Devon Aoki will be this week.