Michelle Obama, Bill Clinton jab President Obama on Twitter

Show Caption Hide Caption President Obama got his own Twitter account (for real this time) President Obama joined Twitter as @POTUS and is updating the account himself. Gillian Pensavalle (@GillianWithaG) has more.

Yes, it has come to this.

President Obama tweeted: "Hello, Twitter! It's Barack. Really! Six years in, they're finally giving me my own account."

Within minutes the account had thousands of retweets and favorites.

And just to be sure, the White House confirmed it.

Need more proof? Here's a video of the president sending his tweet, and another tweet about his tweet:

Michelle Obama was not impressed.

But just to be clear, the commander in chief is NOT tweeting from his personal device in that video, says Jen Psaki, White House director of communications.

Of course, Obama has had access to the Twittersphere all along.

He would occasionally send tweets from his campaign account @BarackObama — now run by Organizing for Action — or from @WhiteHouse, signing them "-bo." The @POTUS account belongs to the White House, so Obama will have to give it up when he leaves office.

Many years and 140 characters ago ... celebrities and government agencies alike were new to Twitter, too.

Here are some selected first tweets — proof that we've come a long way.

Who says the spies at the Central Intelligence Agency don't have a sense of humor?

Oprah charmingly called it "Twitters" — though she seemed to have gotten her caps-lock key stuck.

Punctuation was definitely hard in 2009.

Billy Crystal was late to the game, joining in 2011, but quickly picked up on a key use of Twitter: self-promotion.

Bill Cosby was full of promises — promises he couldn't keep?

Top honors, however, go to late-bloomer Alec Baldwin, who joined in 2011 and surely had no idea what he was in for.