The singer sent her first tweet on the social networking site today, despite having registered the account three years ago and having a following of over 3.5 million.
She said: "Hey World, It's B! I'm so excited to invite you to my new http://beyonce.com - we've been working hard, and it's finally ready for you XO"
Fans who visited her new official website quickly replied with messages that the web page's logo was mistakenly upside down and back to front.
The star currently follows Destiny's Child bandmates Kelly Rowland and Michelle Williams, Mariah Carey and Usher among others.
Beyoncé also launched her own personal Tumblr page today, which includes personal photographs and video clips.
It was recently reported that Adele is keen to collaborate with the star, calling her "one of [her] ultimate favourites".
Listen to Beyoncé's new single 'End of Time' below: