The TV star's eldest child was briefly shown on screen watching Harry Potter star Tom Felton's interview with his famous dad.
During an interview with the Draco Malfoy actor, the 53-year-old presenter – who has two other sons Stanley, 21, and Albert, 17, as well as a six-year-old daughter Elise – introduced his 25-year-old son.
Piers said: "He has never wanted to see me in action on this programme in his life. Has no interest in anything I've ever done in my life.
"But he has a Harry Potter tattoo, Spencer. And he has come in today at this ungodly hour just because he has heard you're on the show."
As the camera panned over to Spencer – who is from Piers' first marriage to Marion Shalloe – his famous father asked his son to show off the tattoo on his arm.
Giving him a wave, Tom, 31, said: "He has great taste."
Those watching at home took to Twitter to comment on how attractive they found the TV star's eldest child.
One wrote: "Wow Piers son Spencer is fit #GMB."
Another commented: "@GMB @piersmorgan your son is quite the looker."
A third shared: "Anyone else notice how good looking @piersmorgan son is on #goodmorningbritain."
It comes days after Piers' fans claimed his son Spencer "won the internet" after mocking his famous father online.
The 25-year-old had his dad's social media followers in hysterics after he compared him to the iconic Pigeon Lady from Home Alone 2: Lost in New York.
Piers retweeted his son's post with three angry face emojis and it wasn't long before fans flooded their social media platform with comments.
On Monday morning Spencer shared with his 27,000 Twitter followers a photo of Oscar-winning actress Brenda Fricker, 73, in her role as the Pigeon Lady.
He told them: "Chilled night watching Home Alone 2.
"Always forget you're in it @piersmorgan…"
Many fans were quick to point out that while Piers might be insulted, it was actually actress Brenda Fricker who should be outraged.
Got a story? email [email protected] or call us direct on 02077824220.
We pay for videos too. Click here to upload yours.
Source: Read Full Article