Google+
Madonna...do we need to say anything else?
Adrian Grenier
Google+
Adrian Grenier may have played womanizer Vinny Chase on TV, but the "Entourage" star has a more down-to-earth side. Grenier posts pics of his personal life, including one with his mom's dog. Aww.
Mariah Carey
Google+
The pop diva keeps fans up-to-date by posting photos and updates on her Google+ page.
Snoop Dogg
Google+
Looks like there's no more drama in the LBC. The rapper updates us about his laid-back life on his Google+ page.
Britney Spears
Google+
The pop princess keeps us updated on Google+.
Will.i.am
Google+
Every night can be a good night when Will.i.am is involved.
Ashton Kutcher
Google+
Of course, Ashton is on Google+. The tech savvy actor is on nearly every social network.
Taylor Swift
Google+
The country star posts all of her updates on her Google+ page.
Trent Reznor
Google+
Keep up with the musician's projects on Google+.
T-Pain
Google+
The rapper posts updates on his Google+ page, but occasionally gives cool things away to his fans.
Dwight Howard
Google+
Basketball fans will be happy to add Orlando Magic's center Dwight Howard to their circles.
David Spade
Google+
The comedian and actor posts personal photos and updates on Google+.
Wil Wheaton
Google+
The actor has always been active on social media sites. Google+ is no exception.
Ron Garan
Google+
Ok, he's not famous, but he should be. NASA astronaut Ron Garan is currently aboard the International Space Station and posts photos from outer space. Super neat, right?
