Up to one million people are expected to attend the Carnival to experience Caribbean culture, food, music and dance.
Thumping basslines, sizzling meat and tooting whistles filled the air as giant floats made their way from Westbourne Park Underground station, up Kensal Road, along Ladbroke Grove and down Westbourne Grove in West London.
One of the first groups to take to the streets was the charity Kinetika Bloco, whose dancers wore pink, green and white costumes while a brass band played songs from The Clash's Rock the Casbah to Daft Punk's Get Lucky.
More top news
Jeremy Corbyn has come under fire in a fresh row over Israel after he appeared to compare the Israeli state to jihadi terrorists.
Thousands of soldiers who died in the Battle of the Somme will be remembered today at commemoration events across the UK and France.
Soliciting of clients by sex workers should no longer be a crime, according to new recommendations made by Home Affairs Select committee.