Chesney, along with B*Witched, Scouting For Girls, The Stars From The Commitments and Bjorn Again, will be perfoming in the evening following racing in the e Dubai Duty Free Shergar Cup at Ascot.
Participants in Ascot's very first lip sync include Mike Cattermole, Hayley Turner, the Clerk of the Scales, a cameraman, course stewards, bar and restaurant staff, racegoers and more.
Watch it now http://www.ascot.co.uk/chesney-hawkes-0
Premier Admission ticket holders will have a short priority period to access the concert following racing.
Also to celebrate the Dubai Duty Free Shergar Cup, Ascot has recreated the figure of a giant racehorse, cleverly contorted out of 10 acrobats, crossing the winning post at the Racecourse.
The 'human racehorse' took seven hours to create and is ridden by German jockey, Stefanie Hofer, who will be making her debut at the race day as part of the Girls team, alongside Canadian Emma-Jayne Wilson and Brit Hayley Turner.
Watch the video to see how the 6ft figure was formed http://www.ascot.co.uk/con-horse-tionist
Grandstand Admission for the Dubai Duty Free Shergar Cup is available from £20 in advance. Premier Admission from £35. Book now to secure up to 20% off 'on the day' prices. Free entry for under 18s. Call 0844 346 3000 or visit www.ascot.co.uk