Tens of thousands of people tuned in to watch the Switch On from the comfort of their own homes as the event, hosted by television and radio presenter Becca Dudley, was broadcast live online for all to enjoy. Here are some of the best pictures taken on the night.
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Shirley Ballas, the star of the Blackpool Illuminations Switch-On 2021
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The 1,500-strong crowd
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The Blackpool Illuminations in all their glory
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A young boy watches in amazement at the Promenade lights up
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The event was a welcome return to normality following last year's event, which was closed to live audiences
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This year, a nightly laser show called Astral Dreams will accompany the Illuminations season. Designed by Jack Irvings, the show will be projected onto the Tower.