The McBusted star pasted a snap of himself as a baby alongside a photograph of his boy yesterday (3 June) to show fans how alike they are.
And we have to admit, they could pass as the same baby!
Posting the snapshot on Instagram, Tom told his followers: "Me & Buzz, Buzz & me."
Singer Tom and his wife Giovanna welcomed Buzz into the world on 13 March and they are quite rightly smitten with their baby boy.
But although fans had specualted that the couple named Buzz after Toy Story character Buzz Lightyear, Giovanna recently put paid to these rumours.
In an interview with ITV1's Lorraine, Giovanna said: "We liked the name for a few years, but actually we went off it when I was pregnant.
"Then in the last month, it came back on the table. I know everyone thinks we named him after Buzz Lightyear but we haven't."
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Celebrities who have welcomed babies in 2014
Copyright: Rex Features WENN/Matthew Taylor/Daniel Deme/Josiah True/Matthre Taylor/Joe