The double festive celebration as Boston lit up for Christmas have been dubbed the best event of its kind.
A Bosotn Council spokesman said thousands crammed into Market Place to see boxer Callum Johnson launch a knock-out blow to light up the town in spectacular style.
The Boston boxer, and world title contender, swung a powerful left hook that smashed into a punchbag on the main stage - and the brilliant lights installed by the Christmas in Boston team instantly sparkled into life.
The day began with the opening of the Christmas Market by Boston Mayor Cllr Judith Skinner - whose help was then sought by Channel 5 TV to publicise the search for the winner of the £76 million Lottery ticket.
Live entertainment continued on the main stage and in Strait and Wide Bargate, only pausing in the evening for the Illuminate Parade and the big lights switch on.
A second Christmas lights switch on took place shortly after the Market Place switch on at the Pescod Square Shopping Centre with Peter Rabbit.
The centre tweeted: “Thanks to all who came to Boston Town Centre and Pescod Square for the Lights Switch On events yesterday. The evening was incredibly well attended.”