President Barack Obama's official Twitter account announced Monday that it has crossed the 3 million follower mark.

The handle @BarackObama tweeted Monday afternoon:

As we kick off 2010, our Twitter community has grown to over 3 million. I continue to be grateful for your partnership as we work for change

Obama's account, which is operated by the Democratic National Committee, is the fourth-most followed Twitter trailing actor Ashton Kutcher's, singer Britney Spears' and comedian Ellen DeGeneres'.

The top four accounts are the only handles with over 3 million followers and the top three each have over 4 million according to TwitterCounter, a widely-used Twitter metrics site. 

TwitterCounter shows that Obama's account likely gained its 3 millionth follower between Saturday and Sunday.

@BarackObama primarily tweets promotional messages regarding the White House's agenda.