THIS Morning fans were left in shock after realising that Amy Walsh is sister to Kimberley Walsh.
Viewers could not believe that the Emmerdale actress, 31, and Girls Aloud star, 36, were related - but some noted how "similar" the siblings are.
They took to Twitter to share their surprise when it was revealed on the ITV show that Amy, who plays Tracy Metcalfe in the Yorkshire-based soap, had a famous older sister.
One wrote: "Yooo what amy walsh's sister is kimberley from girls aloud???"
Another tweeted the singer: " hiya! Just seen your sister on and she looks so so similar to you!"
A third commented: " sister is so alike her, mannerisms - both beauts"
In addition to Kimberley, the soap star has another famous sister, Sally Walsh.
The 39-year-old was the first of the Walsh family to hit the big time when she appeared as Marlon Dingle’s troublemaker girlfriend Lyn Hutchinson from 1997 to 2000.
She worked in film and television from the age of eight and joined Emmerdale as outspoken schoolgirl Lyn when she was 18.
Most remembered for her infamous cat fight with Kelly Windsor, she went on to date chef Marlon (Mark Charnock).
The three sisters also have a brother Adam, 35, who made his TV debut in Heartbeat in 1993.
Amy, the youngest family member, was the last to make it, but after various theatre roles and a stint in Hollyoaks Later, she landed the part of Emmerdale’s Tracy in 2014.
The multi-talented family grew up in Bradford and from an early age the four Walsh children all showed signs of showbiz stardom.
They joined a local stage school and pretty soon started landing acting roles.
Amy's appearance on This Morning came during an eventful episode in which Ruth Langsford was forced to leave the set on This Morning after suffering a violent coughing fit.
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The TV star, 58, suddenly got off the pink sofa in the middle of Trinny Woodall's fashion segment to find something to stop her cough, leaving Eamonn to continue presenting alone.
Trinny was in the middle of talking viewers through a stripey outfit being modelled by a guest when a violent cough could be heard in the background.
The camera then panned to the entire group, and Ruth was seen interrupting her saying, "Trinny I'm just going to..." before walking off air.
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