Go back in time, readers, and relive the first Tweets by a number of celebrities here.
1. Ellen's First Tweet
This is Ellen's first-ever Tweet. And, yes, it's called a Tweet.
2. Taylor Swift's First Tweet
Taylor Swift's first Tweet? It was actually a RE Tweet of something Justin Bieber said.
3. Lady Gaga's First Tweet
This is how it all started for Lady Gaga. She now is one of the most followed celebrities around.
4. Miley's First Tweet
The first Miley Cyrus Tweet did not involve a topless photo or any crotch grabbing. AMAZING!
5. Britney's First Tweet
Britney Spears kicked off her Twitter career in very official, professional fashion.
6. Obama's First Tweet
Barack Obama's first Tweet was very funny. But it was very important.
Wait! There's more Celebrities Use Twitter for the First Time! Just click "Next" below: