Stars invade Monaco

1 of 12 Ronaldo and Bono embrace on the starting grid

2 of 12 Supermodel Heidi Klum enjoys a tour of the Monaco pits

3 of 12 Professional playboy and newly-retired Grand Prix driver Eddie Irvine was up to his usual tricks

4 of 12 Man Utd's Rio Ferdinand was one of several footballers to be a guest of Ferrari

5 of 12 Real Madrid's Roberto Carlos (right) poses with F1 boss Bernie Ecclestone and Renault driver Fernando Alonso

6 of 12 Man Utd goalkeeper Fabien Barthez beats Michael Schumacher in a charity football match organised by Prince Albert

7 of 12 McLaren driver Kimi Raikkonen, the world championship leader, arrives with his Danish girlfriend Jenni

8 of 12 Supermodel Naomi Campbell poses in the Monaco paddock with Fernando Alonso of Renault

9 of 12 Five-time world motorcycle champion Mick Doohan enjoys the Monaco atmosphere

10 of 12 It's five-time Monaco winner Michael Schumacher under that helmet

11 of 12 Juan Pablo Montoya negotiates the swipe-card security machines on the entry to the paddock

12 of 12 Naomi Campbell shows Vogue photographer Michel Comte around the paddock