Shirley Ballas, 58, joined the judging panel last year after it was announced she would be replacing Len Goodman as the head judge.
However, the Strictly Come Dancing star recently shocked fans when she uploaded a snap to her Instagram account of the 33-year-old X Factor contestant Giovanni Spano.
Shirley captioned the post: “What can I say about @giovannispanoofficial, just amazing talent. X Factor are lucky to have you.
“You are entertaining, hardworking, fun and kind. Nanny and I wish you the very very best in the X Factor competition. We are voting.
“Good luck my friend #xfactor #music #soul #performer #art #talent #simplythebest.”
The surprise admission left many of her fans wondering if the X Factor rocker and Shirley Ballas were related.
One fan asked: “Are you related? He’s brilliant.”
However, Shirley’s publicist told Express.co.uk: “Absolutely not! [Related]
“He is good friends with her son Mark Ballas and Derek Hough, so she has known him for a long time.”
Shirley’s praise for the X Factor hopeful, had her fans echoing a similar sentiment as her 86,600 followers flocked to agree with the judge about Giovanni.
Shirley Ballas: Judge reveals connection to X Factor star (Image: WENN)
Shirley Ballas: The Strictly star revealed Giovanni is friends with her son Mark (Image: WENN)
One fan wrote: “What a showman! He’s certainly born for the stage. As are you @shirleyballas. Always enjoy our weekly dose of Strictly.”
Another wrote: “He is also my favourite one.”
A third person wrote: “He’s fab, it’s great to have a fresh approach. Love him.”
Giovanni is in the overs category which is headed by Ayda Field.
Meanwhile, Shirley recently uploaded a snap on her Instagram where she sported red leather thigh high boots.
Shirley Ballas: Giovanni is currently a contestant on X Factor (Image: WENN)
She captioned the post: “An amazing time in New York. Theatre going every evening to watch @kinkybootsbway @jharrisonghee @markballas @carriesstlouis leaving with so many memories.”
She added: “Now time to go back to London for @bbcstrictly feeling humbled and blessed.
“A huge thank you to my son for always making me smile #broadway.”
Fans were quick to respond as one said: “You better work Shirley.”
Another added: “Love that your adorning the @kinkybootsbway again @shirleyballas #kinky.”
Strictly Come Dancing continues tonight on BBC One at 7pm.