The controversial TV presenter assigned Hollywood stars to the whole GMB team, with Susanna Reid played by Catherine Zeta-Jones, Laura Tobin portrayed by Martine McCutcheon and Dr Hilary Jones acted George Clooney.
But it was his own casting that caused a few sniggers from viewers, after he said that Love Actually star Colin Firth would be the right man for the job.
"[He said], 'I should be very interested in playing you in a movie!'...so thank you Colin!"
However, taking to social media, jesting fans were quick to suggest there was someone else more suited to playing Piers instead.
While another concurred: "@GMB please please instead of Colin Firth put up a picture of The Bird Lady Brenda Fricker. It will drive Piers crazy".
@GMB Not so sure about Colin firth @piersmorgan,however I think you look more like the bird lady from home alone :wink: pic.twitter.com/I8pmpSkwed
- marty maddison (@martyalan85) January 12, 2021
@GMB please please instead of Colin Firth put up a picture of The Bird Lady Brenda Fricker. It will drive Piers crazy
- Wally (@dinowallypad) January 12, 2021
@piersmorgan @GMB Piers, why are you even considering Colin Firth to play you, when we all know it should be Brenda Fricker:joy::joy::joy::joy:
- Jamie Arthur (@westhamboyjay) January 12, 2021
The comparison was first actually made by the former newspaper editor's own son, Spencer, on Twitter back in 2018, while watching Home Alone: Lost In New York.
Chilled night watching Home Alone 2. Always forget you're in it @piersmorgan pic.twitter.com/JoEmMBFdQn
- Spencer Morgan (@spencermorgan93) November 5, 2018
And Piers swiftly replied with three angry faced emojis, in the comments.
Now the rumour has taken on a life of it's own. In fact, last month, Susanna Reid claimed she had 'proof' they were the same person, showing footage from an episode in 2018 where Morgan was covered in pigeons.
Meanwhile, another Twitter user posted a side-by-side picture of Piers and the pigeon lady shortly afterwards, and wrote: "Im not saying Piers Morgan is the Pigeon Lady from Home Alone 2 but have you ever seen them in a room together at the same time."
We're not saying this is going to follow Piers until the end of time, but.... it almost certainly will.
Sorry Colin, we think Brenda has got the gig...