Leonardo DiCaprio keeps it casual in shorts and signature hat as he awaits start of Las Vegas Grand Prix with cup of coffee

Heidi Klum goes topless under a black leather jacket as she makes a very racy appearance at the Las Vegas Grand Prix with husband Tom Kaulitz

Gordon Ramsay takes a nasty tumble at the Las Vegas Grand Prix as climbs out of his car after channelling his inner racing driver during a practice lap

Gordon Ramsay, 57, hits Las Vegas just days after his wife Tana, 49, gave birth to their sixth child as he attends Grand Prix with daughter Holly, 23