How do you send an uploaded video to someone on FB?

[Leah P]

It's my uncles birthday but he and I live about 12 hours away. Me, my mom(his sister), my grandma(his mom), my little sister(his niece), my cousin(his cousin), and 2 o my aunts recorded a video singing Happy Birthday. Now I want tosend it to him in a pirvate message on FB....I posted it in my videos at first but my mom was all "I just went swiimmig and I look bad. Take it down and send it to him in a message.." How??? Becuase it'll only let me send a video that I record ON FB using my webcam...10 points ferrr surrreeee!
You can't! If you click video it makes you record the video right then. The video is already in my file.
@Himanshu: I can't. My mom doesn't want everyone to see. Uuqqhhh!