The 34-year-old presenter shared her style secrets with her twitter friends and followers.
The Operation Transformation presenter was inundated with messages and tweets last week asking her where she got her blush pink top which she wore on Wednesday night's show.
But Kathryn wasn't showcasing a high end designer piece. It was high street shop Alwear's Pink Ciara Dipped Cami. A bargain at just €25.
The presenter of The Voice Of Ireland likes to mix and match pieces from Irish designers, such as Emma Manley, Syan O'Mahony and Natalie B Coleman, with high street pieces and lists her favourite shops are River Island and Alwear.
Kathryn says that Eve Mendes and Helena Christensen are her style icons and top of her fashion lust list is a Marchesa dress.
The Voice Of Ireland star has undergone a radical 'break-over' since her relationship with Enda Walsh ended last summer.
The pair had been together for five-and-a-half years and says that she is still recovering from the split.
"There is always going to be a huge sadness for a while. When you spend five-and-a-half years with somebody it's a long time and it's an adjustment; I think I'm still adjusting"
But Kathryn looked anything but lovelorn when she jetted off to Spain for a post Christmas break
The presenter showed off her toned and tanned physique as she sipped cocktails with sister Linda and close pal Mary Kay Sheehy. With a killer figure and a stellar wardrobe, we think Kathryn has never looked better.
The Carlow native isn't the only celeb who likes to mix high street and designer.
Amy Huberman is a big fan of Topshop and French label Maje. The Geldoff sisters and Kate Moss also love high street giant Topshop.
The Saturday's Una Healy can't get enough of All Saints and Urban Outfitters.
Una is currently in the States promoting her new show Chasing The Saturdays.
She might be rubbing shoulders with the A-listers but Una has said in the past she'll always stay a high street girl.
"I don't really get to wear a lot of top designers and to be 100pc honest, I don't even know any their names because I'm not out there wearing any designer names," she said. "I'm a high street girl that's just the way I am. I do like designer handbags and shoes but I don't have any top designer dresses."