Really like what you've done here, you've given it magic 80's vibes! I never really saw this song/acapella in this light before but it's very impressive how well the acapella fits with the song/an 80's song! Something else that's impressive is how diverse your mashups/edits are, 80's one week then rap the next, top work mate!
The only problem i could hear was around the 40 second mark where the vocals clash, but i'm guessing this might be how the song is and could be hard to fix. This is just my personal view though, others may like it. Top work again though :)