I'm A Celebrity... Get Me Out Of Here! viewers were left confused during a discussion around the campfire on Tuesday night's instalment of the show.
While the contestants were cooking dinner David Ginola asked Frankie Bridge to sing a song she recorded while in the band The Saturdays.
"Just a few seconds," he said to the popstar, keen to hear a taster of her music.
"I can't think of any," Frankie protested as a surprised Matty Lee laughed.
"Push the button, no?" Danny asked to which Frankie giggled and told him: "Sugababes."
"They're all going to sound s**t," Frankie said as her campmates pushed her for a tune.
Finally the mum-of-two burst into All Fired Up, the girl band's 2011 track, reports Manchester Evening News.
"That's literally how that one goes... erm, I don't know," she said after subtly ending the brief rendition.
"You weren't in The Saturdays were you?" Simon Gregson joked.
And it seemed many viewers at home were also confused, with one writing: "How does Frankie not know the words to any of the Saturday's songs."
While another questioned: "Frankie doesn't know any of her songs????"
And a third asked: "Frankie can't think of a single song from her girl group?"
Defending the singer, a fourth wrote: "I think when they asked her to sing a song, maybe Frankie felt like she was put on the spot and you just like in that moment forget things when you feel pressurised and all eyes are on you if that makes sense."
Frankie joined The Saturdays in 2007, alongside Mollie King, Vanessa White, Una Healy and Rochelle Humes, and the group went on to achieve 13 top 10 records and five top 10 albums.
Prior to that Frankie was in S Club 8 (S Club Juniors) having auditioned for the band, which was a younger spin-off of S Club 7, as part of the CBBC show S Club Search in 2001.
The Saturdays have been on hiatus since 2014, which is the same year Frankie came runner-up on Strictly Come Dancing and more recently the popstar joined Loose Women as a full-time panellist.
Speaking about her music career before heading to the castle, Frankie said: "People assume that if you are in a pop group you lead a really glamorous lifestyle and that I wouldn't want to get stuck in, but I know I will give everything a go."
I'm A Celebrity continues tonight at 9pm on ITV.
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