Nicole Scherzinger shut-down Calvin Harris infidelity rumours while gushing over beau Grigor Dimitrov... Glamour magazine

Nicole Scherzinger, who is blissfully loved-up with tennis ace Grigor Dimitrov, has blasted the 'ridiculous' claims in a new interview for the latest issue of Glamour magazine. 

The 38-year-old X Factor judge spoke candidly to the fashion tome before posing for a sizzling new shoot in which she sported just a jumper while showing off her phenomenal legs. 

Nicole has been dating Grigor, 25, since July 2015 yet one year on images of her leaving Tape nightclub arm-in-arm with 32-year-old Calvin set tongues wagging. 

Since then, Calvin joined Nicole as she took her Boys category to the Judges Houses round of The X Factor to help her pluck out the talent - yet she is insistent Grigor has nothing to worry about.

She said: 'It was all: "She’s the biggest cheater", I’m like, excuse me? I was walking on cobblestones, almost fell, grabbed him, two frames and that was it. It’s ridiculous.'

Aside from dismissing the rumours she also gushed about her relationship with her tennis ace toyboy: 'I am happy. I’m in a really good, solid, more balanced place in my life. I’ve grown a lot as a woman.

'My grandma always used to say, to find the person you wanna marry, you have to find the person you wanna work on your relationship with for the rest of your life. That’s the key word: work.'

Alongside her endearing chat was a stunning shoot in which she pulled her hair into a faux bob while rocking just a jumper and knickers. 

 Nicole Scherzinger shut-down Calvin Harris infidelity rumours while gushing over beau Grigor Dimitrov... Glamour magazine