Mahu / Allpix Press/Splash News
"Gimme More," eh? You ain't kidding.
has become the sixth person to hit the elusive 10 million Twitter mark, joining an exclusive club that includes fellow music superstars Britney Spears , Lady Gaga and Justin Bieber . Katy Perry
To put it in perspective, that number is roughly equal to the population of Belgium, or a little more than the state of Michigan.
Who else is the rarefied tweet zone?
RELATED: Crotch Alert! Briteny Spears Still Can't Act Like a Lady
The Britster, who has 10,157,172 followers
@britneyspears, is catching up quick to 's 10,356,472 Kim Kardashian Twitter followers in fifth place.
We'd say that's pretty good news for the 419,514 people Britney is following!
And Spears definitely delivers to her fans, having uploaded 1,095 tweets since launching her account, the latest a
twitpic of her Femme Fatale road show in Paris.
Here's a rundown of the rest.
@ladygaga leads all Twitterers with a whopping 14,441,874 devotees. She's followed by @justinbieber with 13,365,355, @katyperry with 10,751,805 and President 's Barack Obama 10,527,232 followers. 's Shakira feed is closing in on the 10 million mark—she has 9,154,900 followers for seventh place, just ahead of 's Taylor Swift 8,458,688.
Rounding out the top 10 list are
Rihanna with 8,317,546 fans and early Twitter booster , aka the first person to break the 1 million barrier, who's up to Ashton Kutcher 7,928,341.
GALLERY: Big On Twitter: Hot Trending Topics