McFly's Tom Fletcher and wife Giovanna welcomed baby Buzz on 13 March, and doting uncle Mario has been spending as much time with his nephew as possible.
Mario, who has recently launched new online clothing store Lafamillia, protectively wrapped his arms around one-week-old Buzz - so cute!
Captioning the snap, Italian tailor Mario said: "With my nephew Buzz... I love him so much!"
Mario's photo follows a very sweet YouTube video, which Tom and Giovanna unveiled last night (20 March). The visual documented nine months of Giovanna's pregnancy with Tom providing the music while strumming on his guitar.
The video has already been a viral hit and it made Mario a little emotional too. He later tweeted: "This made me cry.. The creation of my beautiful nephew Buzz!!! @tommcfly@MrsGiFletcher."
After meeting Buzz for the first time last week (14 March), proud uncle Mario said: "Cuddling my new born nephew Buzz... He is amazing! I absolutely love him!!!!"
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More celebrities who've welcomed babies in 2014 below:
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