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Thousands of Little Mix fans will flock to Detling this weekend as the world-renowned girl group plays the Kent Event Centre.
With up to 30,000 fans set to arrive on Sunday, traffic management is being put in place on the A249 throughout the concert, but Kent County Council is warning of significant delays.
Organisers have warned anyone travelling with children to bring a blanket and a pillow for the car journey home.
The venue's car park will open at midday and organisers have warned anyone turning up early will be turned away.
Gates open at 4pm.
During entry, lane two of the southbound A249 will be closed to allow traffic to turn right into the showground.
The cross overs on A249 will also be closed to prevent accidents from U-turning vehicles.
Temporary traffic lights will be in place on the northbound carriageway so travelling fans cross the northbound lane into the venue.
Anyone caught on the northbound A249 not intending to see Perrie Edwards, Jesy Nelson, Jade Thirlwall and Leigh-Anne Pinnock perform should use lane two.
For parents and other on-the-day chauffeurs, there will be a signed drop off and pick up zone in Scragged Oak Lane.
The day's music kicks off at 5.40pm with a KMFM DJ set, which will be followed at 6.40pm with performances from Rak-Su and Germein Sisters.
Little Mix are expected to come on stage at around 8.30pm, with the concert ending at around 9.45pm.
Organisers have warned it will take fans "a number of hours to get out of the venue via car or alternative transport".
Lane one of the northbound A249 will be closed to allow traffic to flow freely from Scragged Oak Lane as crowds leave the concert.
Temporary traffic lights will be in place at the showground exits, while traffic lights at the M2 junction five Stockbury roundabout, will be switched off.
Medical, catering and toilet facilities will be available in the car parks.
Anyone wanting to avoid the crowds is advised to use the A229 Blue Bell Hill when travelling between the M20 and the M2.