short animation

I need a very short parody animation creating and posting on YouTube. The animation will need music and singing on it. The animation will be very short, a man knocks on a door holdings a pizza box and sings t the person opening the door. The man then opens the box to reveal the contents. The parody Will be to the " happy birthday" music. Only 4 lines of the song ,and one short sentence after will need to be animated. Animation once produced will need to be placed onto youtube. Animation can be used for your portfolio if required. This is to be used fir viral advertising and complete details will only be disclosed to the winning bidder.