Beyonce has been keeping fans in the loop through a series of photos on her Tumblr website, I Am Beyonce. The Houston native has taken up sharing intimate details of her life a notch by striking a deal with HBO to air a documentary she has directed, produced and filmed herself about her life. The cable network has released a 25-second preview trailer for the untitled film to give her fans a sneak peek of what to expect. In the footage, the "Love On Top" singer is on stage and her voiceover states: "I always battle with how much do I reveal about myself... If I'm scared, be scared... allow it... release it."