Rio de Janeiro might be catching all the spotlights, as Brazil is caught up in the Olympic Games fever, but was the other famous city of the country, Sao Paolo, stole of the attention for the annual Miss BumBum competition. 27 of Brazil’s sexiest women will compete to decide who has the best buttocks! The hot semi-finalists were on the streets of Sao Paolo in their thongs, flaunting their round-shaped bums. Their appearance caused havoc on the streets, and to keep in line with the Olympics the girls competed in a 100m dash. The finalists will be announced in a few days, after which a second running competition will be held and voters will cast their votes for the winner.