Two ways. If it is one long set with multiple songs create a Lyric that covers each of the songs in order, load that into the schedule, then set the video as a motion background. 

If you have multiple videos of one song each just move the different song lyrics into the schedule and add the appropriate video as a background.

Donal

Thank you for your reply. How do you then save the video as a final project to then be loaded onto Youtube.

I would use OBS (free) to record the output screen. It can be set to Record only, Stream Live only, or Stream Live and Record simultaneously. 

https://obsproject.com/