The Irish-born couple had been at ITV studios on Monday morning.
Vogue kept the chill out by wrapping up in a zebra print coat, while manly former Westlifer Brian braved the breeze in nothing but a red jumper.
Vogue tweeted: "Happy St.Patricks day everyone xxxx"
She then went on to eat loads of food to celebrate, and later said: "Ate WAY too much crap today but loved every minute of it OINK."
Meanwhile Brian, who married his wife in Italy in 2012, jetted off to Glasgow on Monday afternoon to attend a charity golf event.
Model Vogue has been signed up as the face of BooHoo's Spring / Summer collection this year.
We can't wait to see more of her and her fashion choices!
Will you be attempting zebra print this spring? Tell us below!