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Twitter is 10! See Tom Hanks, Kelly Clarkson's first tweets — and yours!

As is the case with most Twitter users' first tweets, celebrity reactions to the social-media platform reflect curiosity and uncertainty.
/ Source: TODAY

How tweet it is!

Getty Images, Twitter

As Twitter prepares to celebrate its 10th anniversary, and ahead of CEO Jack Dorsey's exclusive interview this Friday on TODAY, we're marking the milestone by taking a look back at some of our first tweets.

Do you remember what you said in your very first tweet? Here's an easy way to find out:

From the TODAY anchors to Hollywood's biggest stars, first attempts to tackle the 140-character medium have made for some interesting and memorable moments over the last ten years:

Ashton Kutcher (Jan. 16, 2009)

One of Twitter's earliest celebrity adopters, Kutcher announced that he was "dropping my first tweet" just a couple of weeks into 2009. His account quickly would become one of Twitter's most popular.

SAINT LAURENT At The Palladium - Arrivals
Ellen DeGeneres arrives at the Saint Laurent show at the Hollywood Palladium on February 10Matt Winkelmeyer / Getty Images

Ellen DeGeneres (March 10, 2009)

"Tis my first twitt-er." tweeted DeGeneres from her @TheEllenShow account, then expressed second thoughts about her proclamation. "Or tweet? Twit? Or tweet? 'Twit or tweet everybody.' Is this anything?"

Kourtney Kardashian (March 11, 2009)

A day after DeGeneres' first tweet, Kourtney Kardashian tweeted she was "Trying to get into this." More than 10,000 tweets later, it's safe to say she's embraced the format.

Pink (April 3, 2009)

The three-time Grammy Award winner considered herself a bit behind the times, noting she'd "officially entered the 20th century. i mean the 21st."

Oprah Winfrey (April 17, 2009)

Considering she joyously introduced many of her talk-show guests at the top of her lungs, should users have been surprised her first tweet was in all-caps? Even the larger-than-life Shaquille O'Neal may have felt the legendary host should take it down a notch, replying, "[your] caps are on, [by the way]."

Miranda Lambert (May 1, 2009)

The country star simply narrated what she was doing. Why make it any more complicated than it needs to be?

Tyra Banks (July 17, 2009)

The "America's Next Top Model" host tried to go the "clever" route, but gave up that approach. Her fans probably "smized" regardless.

87th Annual Academy Awards - Arrivals
Singer Adam Levine attends the 87th Annual Academy Awards on February 22, 2015Jason Merritt / Getty Images

Adam Levine (July 21, 2009)

A coach on "The Voice," the Maroon 5 lead singer announced his tweets were going solo.

Neil Patrick Harris (Nov. 16, 2009)

The savvy awards-show host and "How I Met Your Mother" star, as expected, delivered a pitch-perfect first tweet that tested the boundaries of the format's 140-character limit. "My first tweet, peeps," he tweeted. "I apologize in advance for my slow learning curve. Nice to (sort of) meet you. It's amazing how quickly 140 charac [sic]"

Citizen Watch Company's New York Corporate Offices Grand Opening
Kelly Clarkson attends Citizen Watch Company's New York Corporate Offices Grand Opening on November 3, 2015Rob Kim / Getty Images

Kelly Clarkson (Jan. 3, 2010)

The original "American Idol's" arrival seemingly involved following through on a promise, but to whom? Ryan Seacrest? Simon Cowell? William Hung?

Tom Hanks (Jan. 11, 2010)

Yes, this thing is on, two-time Academy Award winner Tom Hanks. Even your tweets are charming.

Cher (May 4, 2010)

Cher offered a greeting as simple as her Oscar-winning look was not.

Christina Aguilera (March 22, 2011)

Unlike her fellow "Voice" coach in Levine, Aguilera found her first Twitter experience to be the opposite of lonely.

DirecTV Super Saturday Night Co-Hosted By Mark Cuban's AXS TV - Arrivals
Liam Hemsworth attends DirecTV Super Saturday Night on February 6 in San Francisco.Steve Jennings / Getty Images

Liam Hemsworth (June 5, 2013)

Joining later than most celebrities, the "Hunger Games" star seemed happy to be join the party in 2013, when he thanked fans for following.

Celine Dion (Aug. 22, 2013)

"Hello Twitter!" the five-time Grammy winner tweeted in 2013. "How are you? Excited to talk to you more." Her tweets would go on.

Follow writer Chris Serico on Twitter.