Paris Hilton badly hurt her chin after falling over in Prague on Sunday.
The hotel heiress - who has U.S. size 11 feet - was rushing out of a music store in the Czech Republic capital in a bid to escape the paparazzi.
Paris, who was wearing sneakers, tripped as she went through the door with her boyfriend, Good Charlotte rocker Benji Madden.
Instead of helping her up, Benji stepped over the 27-year-old socialite. When he realized what had happened, the musician helped Paris up and glared at photographers who were swarming the celebrity couple.
As the left the store, Paris was overhead moaning to Benji: "Prague, never again!"
The following day, the beauty was seen sporting a large bruise on her chin as she left the Good Charlotte concert at the city's Congress Center.
Meanwhile, Paris is the most overexposed celebrity in the US.
According to Los Angeles E-Poll Market Research, which rated more than 3,000 celebrities in terms of their appeal, 70 per cent of US citizens would use the word overexposed to describe 'The Simple Life' star.
Most celebrities average between three and seven per cent at the height of their careers, researchers found. Britney Spears, Lindsay Lohan and Mary-Kate and Ashley Olsen also appeared on the list.
Gerry Philpott, Chief Executive of E-Poll, said: "In this country, we love to build people up, tear them down and then build them back up again. You can go from zero to 60 in exposure like that. And, for that matter, 60 to zero