Madonna is turning 50 this summer. That's right—the woman who attempted (and thankfully failed) to bring cone bras to the masses has been walking the earth for half a century.

And she's not the only icon celebrating the big 5-0 this year. Michael Jackson will have 50 candles on his cake this August. Actor, environmentalist, and cell phone aficionado Alec Baldwin just turned 50. And the artist formerly known as "the artist formerly known as Prince" turns 50 in a few months. Time, it seems, waits for no man, even if he happens to be extremely funky.

We expect lookups for Madonna, Jacko, and Prince to climb the buzz charts in the coming weeks. In the meantime, we tracked down the top twenty "how old is..." searches from the past seven days. Searchers are always interested in learning the ages of their favorite celebs—even if the glitterati would prefer you think they're all 28.