Why does "Ashton Kutcher" (???) have more followers on Twitter than other celebs?

[Kailey]

So I hear there's this Ashton Kutcher guy... Really famous and has -- WHAAAAT ?! -- over a million followers are Twitter. I've never even heard of this guy before; why does HE have more followers on Twitter than, for example, Obama? (Also, who IS he? Include that in your answer, too, please) :]
THANKS IN ADVANCED!

[In The Zone]

Britney Spears is the most followed person on twitter
5,316,336 followers
http://twitter.com/britneyspears

Ashton is the second most followed person though.

[♥Rachel♥]

He's an actor and he's married to Demi Moore. Ever seen the show, that 70's show? He was on that show.He also did the show Punk's on MTV.He's also been in movies like Just Married,The Butterfly Effect,What Happens in Vegas,Valentine's Day

People just like his tweets i guess.

[Crazy Hair]

he is an actor who has been in various films. he was the prsenter , if you like, of punked, a mtv show where they prank celebs. He is really funny and girls think he is hot, wel some.

[Soph]

he's obamas love child everyone has an interst in him since the great obama hilary clinton love affair in 1998

[Gunnar]

Ashton Kutcher is an actor, he's starred in a lot of movies over the years, and was in 'That 70's Show', some notable movies of his are 'Dude Where's My Car?', 'The Guardian', and most recently 'Killers'. As for his twitter followers, I really don't know why he has so many, but I know last year he was in competition with CNN to who could reach a million twitter followers first (he won).