A claim has been received for a EuroMillions jackpot worth almost £40million.
The single UK ticket-holder has come forward for the New Year's Day draw, hoping to scoop the incredible £39.7million to kick off 2021 in style.
The ticket-holder will then decide whether or not they want to go public with the life-changing turn of events.
The New Year will also start with a further 10 millionaires after a number of players banked £1million in the Millionaire Maker event.
Camelot's Andy Carter, senior winners' advisor at the National Lottery, said: "What a start to 2021 for EuroMillions players.
"Not only did the giant jackpot get won in the UK, but a further ten lucky players banked £1million in the Millionaire Maker event.
"In all, over 900,000 UK players won a prize in the New Year's Day draw.
"It is fantastic news that the jackpot winning lucky ticket-holder has now claimed this enormous prize.
"We will now focus on supporting the ticket-holder through the process.
“All National Lottery games can be played in your local store, online or via the National Lottery app.
"Playing online via the website or app means that your ticket is checked, and you get an email notification if you win a prize.
"You can also scan your retail tickets on the National Lottery app to check if you're a winner.”
The biggest ever UK lottery win was the huge £161million jackpot scooped by Colin and Chris Weir from Largs, North Ayrshire, in 2011.
The couple are also the biggest lottery winners anywhere in Europe.
Adrian Bayford is in second place after winning £148million on the EuroMillions in 2012.