Move over, President Barack ObamaCaitlyn Jenner has hit Twitter.

On the same day as Caitlyn Jenner’s (formerly known as Bruce Jenner) debut as a woman on the cover of Vanity Fair, she joined Twitter and amassed more than one million followers in just four hours. It took Obama, who previously held the record for the fastest-grossing Twitter account, five hours to hit the milestone when he joined the platform on May 18.

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Jenner also created a new Facebook account on Monday, which has already garnered an impressive 188k followers. Her post of the photo has brought in more than 35k likes and 5,000 shares.

Jenner’s first tweet, featuring the Vanity Fair cover without any caption, has already been retweeted a whopping 165k times and favorited 156k times. She also started an Instagram account, where she already has 357k followers.

“I’m so happy after such a long struggle to be living my true self,” reads Jenner’s Twitter bio. “Welcome to the world Caitlyn. Can’t wait for you to get to know her/me.”

Social media has been abuzz since the photos hit the Web, with the news generating more than 1.5 million tweets, including support from the Kardashian family and more celebrities.

Users have been labeling tweets about Jenner with the hashtag #CallMeCaitlyn, referencing the headline on the Vanity Fair cover.