Leonard DiCaprio, Cameron Diaz & David Gandy at Tag Heuer Yacht Party

This is how you know the summer has officially started for rich people. When they enjoy their first yacht party of the season.

Leonardo DiCaprio and Cameron Diaz represented for Hollywood at Tag Heuer’s 50 Years of Carrera event at the 2013 Formula 1 Grand Prix. Another familiar pretty face on the red carpet was model David Gandy.

And from the look of this photo, Mr. DiCaprio appears quite appreciative of Cammie’s assets while they positioned themselves for red carpet photos.

The two stars are brand ambassadors for the luxury brand watch, wrapping up this year’s Cannes partying festivities on the French Riviera.

Leo was looking quite grown and handsome in his suit and facial hair while Cameron showcased her always svelte physique in a short white dress.

The event was also graced with the presence of royalty, with Prince Albert also in attendance. Needless to say, if there was any question of what time it was at any given point during the evening, not a single person had an excuse for not knowing.