Alnwick is preparing for the biggest pop concert in its history. Jessie J will perform on the evening of Saturday 25 August. The show had to be postponed in July after the singer contracted a virus.
Thousands of people will be arriving in Alnwick by car and police say roads will be extremely busy. They're urging concert-goers to leave plenty of time for their journeys and to be patient at the start and end of the evening.
Police are also urging people to keep a close eye on their mobile phones, purses and wallets while they're enjoying the music.