Following in the footsteps of her husband, First Lady Michelle Obama has posted her first tweet on Twitter. However, rather than using an account of her own, she sent her debut tweet using an official White House account.

She sent a message of support for military families using the @JoiningForces account by encouraging the account’s followers to visit the Joining Forces website. As well as signing the tweet with her initials (just like President Barack Obama does when he sends tweets), she uses a hashtag. The tweet was sent prior to Game One of the 2011 World Series in St. Louis.

The White House has posted a video of Obama sending her first tweet on its YouTube channel. In the clip, she seems a little unsure about the process of tweeting before reacting triumphantly once the tweet has been sent.

Her husband, meanwhile, has an extremely popular Twitter account with more than 10.6 million users. He took part in a live Twitter Townhall event in July, where he answered questions from Twitter users and posted his first signed tweet. Obama used the social network to ask his followers for their support in encouraging lawmakers to compromise over the debt ceiling issue. However, his rallying call led to him losing tens of thousands of followers.