Favourite to win Ray and his pro partner Maria Filippov are hoping that the change of pace can see them continue to top the leaderboard and perhaps get another perfect 40.
Former X Factor finalist Ray has topped the judges' scoreboard every week so far, scoring 39.5 points from the panel last week.
Teasing tonight's performance, Ray said: "We're really excited about our routine for Sunday.
"It's the one we've made together before, but we didn't get to skate it because fortunately for us we won the duel, so they gave us the option to be able to skate it this week. We're really excited."
Maria added: "It's the first time we get to skate to slower music, which is very exciting. I think we get to show off a different side of our personality and get to showcase that."
Ray went on: "I think out of all the skaters we've shown variety.
"We've come each week with something different. We had fast paced every week and so I'm looking forward to slowing down a bit."
Dancing On Ice 2014 airs tonight from 6:15PM on ITV.
Browse pictures of the celebrities in training below...