You can make one through YouTube, first open your video maker software, add music and then move your music around. If your song starts straight away, add a title together with the lyrics then after making each slide, check the timing-lengthen. Save the video then upload it to YouTube. You can get more information here http://www.makeyoutubevideo.com/.
Use Windows Movie Maker. First import the song file and any pictures you may want. Then drag and drop the files into the spot you'd want them on the timeline. Then you can add title slides to write the lyrics for a certain duration of time, right above the timeline.