25-year-old Gilles Simon is a French professional tennis player currently ranked World No. 6 and the French No. 1 ahead Jo-Wilfried Tsonga. After turning pro in 2002, it took him five years to claim his first ATP Tour title, the 2007 Marseille Open. Simon’s profile has increased considerably in recent months after high-profile victories over Rafael Nadal and Roger Federer in big tournaments.

Back in 2007, Gilles danced and stripped for French TV to the sound of Donna Summer’s Hot Stuff — check the caps in the gallery. More Roland-Garros 2007 tennis stars karaokeing in the YouTube video below, including  Mickael ‘Night Fever’ Llodra (4′03) and a shirtless Novak ‘I Will Survive’ Djokovic (4′49). Gilles Simon is at 4′22.