London’s Notting Hill Carnival, held at the end of August, officially began in the mid-1960s. Its origins actually reach back to the late 1950s, when a burgeoning Caribbean community started celebrating it own culture, linking back to the carnival of Trinidad and Tobago. Fifty years later Notting Hill Carnival attracts more than a million people, making it one of the largest street events in the world. London photographer Olivia Rose, who specialises in intimate portraits of youth and subcultures, has been documenting carnival goers for several years now. Here, she captures some of the people that make it such a unique event.