A £1m present has been given to 25 EuroMillions lottery ticket-holders in the UK through a special festive draw.
Every week each £2 EuroMillions ticket is entered into a separate raffle with a guaranteed prize of £1m.
But National Lottery guaranteed to create 25 millionaires in the Christmas Eve EuroMillions Millionaire Raffle.
A world record for the most millionaires from a single draw will be set if more than 18 players match their ticket number and claim a prize.
National Lottery said the winners could start to claim their prizes from the next working day, on 29 December.
A National Lottery spokesman said: "It will be amazing to create 25 millionaires and hopefully smash the world record."
More than 2,500 millionaires have been created by the National Lottery in the past 16 years.