British stars including Formula One World Champion Lewis Hamilton, England captain Wayne Rooney and singer Katherine Jenkins have come out in support of The Royal British Legion's #MyPoppy campaign.
Sunday will see services of remembrance take place all over the UK.
The main event as usual will take place at the Cenotaph in Westminster.
The leaders of the country's main political parties will lay wreathes, watched by war veterans and dignitaries.
These star have done a better job of wearing a poppy than the Prime Minister whose staff were accused on Monday of doctoring an old photo.
'Downing Street' updated its Facebook page picture with the new image featuring Cameron apparently wearing a red poppy, but critics slammed it as a "poor photoshop".
The photo, spotted by Dylan Morris, has since been deleted from the Prime Minister's Facebook page and replaced with what looks to be a different, un-edited picture of him wearing a red poppy.
One user commented on the swift change: "Good thing you changed it for an actual photo with a poppy, the previous Photoshop attempt was a disaster."
Another remarked: "That was as fake as your promise not to axe tax credits!"