Luton International Carnival returns this weekend to celebrate its 50th anniversary, with thousands of people expected to line the streets.
The organiser, the UK Centre For Carnival Arts, is hoping about 15,000 people will watch the parade as it makes its way from the town centre to Wardown Park.
After World War Two, the town hosted a series of Easter bonnet parades which in 1976 evolved into the event as it is known today.
Here is everything you need to know about this year's celebrations.
Sunday's parade begins at about 13:00 BST at Market Hill. The procession will then make its way to Wardown Park by 14:00.
A family-friendly festival-like event with live music and wellbeing activities will start at the park at 12:00 and continue until 18:00.
For many years the event either started or finished at the park, but moved before the Covid-19 pandemic.
Executive producer Steve Pascal said it would return to Wardown Park in response to the "community's wishes".
Organisers explained that by moving the festival back to the park they hoped to provide a safe, grassy space where families could meet.
Pascal described Wardown Park as "the spiritual home of Luton Carnival".
Organisers have said there is evidence of large celebrations and parades in Luton stretching back to the 15th Century.
In 1976, a Victorian-themed fayre and market was held to celebrate the 100th anniversary of Luton becoming a borough.
Similar events have continued almost every year since, slowly evolving to focus on the diverse cultures in the town.
Executive director Claudette Whittingham said: "We basically say to people come and celebrate your traditions, because there is this notion that carnival is Caribbean... carnival's right across the globe.
"So come and celebrate your traditions when you come down. We have Muslim traditions being celebrated. We have Roma. You'll see all these different traditions, but they're celebrating it in their way."
Dancers, musicians and vehicles will be decked out in gold to celebrate the carnival's golden anniversary.
The event will highlight several "legends" who have been part of carnival's history, including Samaritans volunteer Marilyn Gearing, 88, who has attended every year since 1976.
Hazel Simmons, leader of Luton Council, said: "For 50 years, the Luton International Carnival has been a symbol of everything that makes Luton special, including our diversity, our energy, and our togetherness.
"It brings joy and pride to our town and attracts visitors from across the country."
Extensive closures will take place across the town centre on Sunday with restrictions on streets like Church Street and Park Street starting as early as 08:00.
Flowers Way and Castle Street will also be closed from that time, but all those roads will reopen at 15:00.
Most central routes through Luton will be closed from 11:00 or 12:00 until 15:30, though major sections, including New Bedford Road and surrounding streets, will remain shut until 19:00.
Organisers have warned that they will attempt to provide some access for residents and businesses within restricted areas but "this cannot be guaranteed and will depend entirely on the operational needs of the carnival on the day".
The Met Office has warned that high temperatures are expected over the weekend, reaching 30C (86F) in parts of the country.
Those looking to make the most of the sunshine at leafy Wardown Park will find a range of activities to keep them busy.
The site will be separated into eight zones. These range from a DJ party area to a quiet zone at Wardown Museum offering yoga and exhibitions.
Traditional steel pans can be heard at an acoustic zone, while attendees can try fitness activities in a health and wellbeing zone.
Having been named a "champion" of the carnival last year, the EastEnders actor Colin Salmon will play at the event with his steelband UFO (not to be confused with the 1970s+ rock band).
There will also be a main stage for live performances and a wide variety of food stalls serving diverse cuisines.
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