I must've used a picture of a mike on a black background, after reviewing that video, that's the way it looks.
It might be done by getting a picture of a microphone, cutting it out of the picture (with a graphics program, like paint shop pro) and pasting it on a blue background. Then using the bluescreen transition in movie maker (Windows XP version, because I cannot seem to make that transition work in Windows 7)
I bought cyberlink power director awhile back, and you can make a transition out of any background color you want.
I haven't messed with the program for a few months.
That's all I know right now.