Need Dance Mix

This might be silly, but I am trying to create a custom mix/mashup for a first dance song for my wedding. None of the songs are my own. It would start with a slower song, then mix into 3-4 upbeat songs, then come back down to the original song to end. I just want it to be mixed professionally, kind of like if it were happening live by a DJ. This will be for personal event use only.