The Game Of Thrones star then goes on to say that the cutout was actually created by her mother, who seemed more than aware of her daughter's fan-filled obsession with all things concerning her crush.
"My mom, as a gift, for finishing my GCSEs, made a cardboard cutout of Justin Bieber and I together… and I cried. I fell up the stairs and I cried," Sophie told the studio audience.
Years later, however, Turner would go on to find herself at a house in Miami where she just so happened to run into the Baby singer.
Sophie, who has been engaged to Joe Jonas since October 2017, remembered the moment someone at the mansion had told her Bieber was upstairs.
And it seemed as if the TV star was sure not to miss out on an opportunity to get a glimpse of the Biebs in that very moment.
"I was told that Justin was there and I walked upstairs. And we were getting a tour of the house. And he was sat there – shirtless," Turner shares before bursting out in giggles.
"I was like, 'Hi, nice to meet you, [I'm] Sophie," — played it cool, [then] ran into the closet 'and cried for like, five minutes," she continued.
"Then I came out with Joe and Justin goes, 'Yo, Joe, I heard you've got a new girl?' And Joe was like, 'Yeah, there she is. She's over there.'
Sophie says that her response upon hearing Justin, 24, ask about Joe's new girlfriend was quite an embarrassing moment.
She recalls sticking her tongue out between two fingers before demonstrating the act for Corden to see, leaving a cheer of laughter among the crowd.
Despite the awkward encounter, Sophie highly doubts that her gesture was anything near the strange things Bieber must see from his fans on a regular basis.
So, if anything, she's far from worried about having left a negative impression on her teen crush.
