Gangnam Style

Hi, I want to sing Gangnam Style for a talent show. I need to dance and not sing during the chorus l, so I need to merge the original with a good karaoke version. I want to have the original right up to the start of the verses. Then sing along with the karaoke, then go back to the original at “Oppan Gangnam Style” then start singing again with the next set of verses. I also want to shorten it, so it ends directly after the send chorus, after “eh, eh, eh eh, eh, eh” then bang, bring the ending sound right to that spot.

Can anyone help?

Scott Miller