Although Captain Tom's big family party was cancelled, the national hero will now be receiving special birthday wishes from all over the country.
The WW2 veteran will be celebrating his 100th birthday on 30th April. In the past week alone, he has raised millions of pounds for the NHS by setting himself a challenge of walking 100 lengths of his garden before the end of the month.
Over 250,000 people have supported Tom by donating, and now people want to personally thank him for his efforts.
Celebrities, including Jason Donovan, have sent well wishes to Tom ahead of his big day. And now, you can do the same.
If you would like to send a birthday card to Tom, who lives in Marston Moretaine, please send it to the following address:
Captain Tom Moore
C/O Post Office Limited
67 Bedford Road