We’ve already given the lowdown on some of the dubious style choices she made during her Las Vegas residency, but everyone’s favourite US warbler has actually got fashion form.

She’s not afraid to tackle a tricky trend and is never knowingly under dressed.

Don’t believe us? Well read on for the proof…

This is why she doesn’t do casual

Think of Mariah and images of her rocking a spray-on dress which is covered in rhinestones probably comes to mind.

Wondering why? We present exhibit A:

17Mariah is certainly no wallflower, even in casual wearCredit: filmmagic.comBinbag chic at it’s best

That’s a pretty interesting shape Mariah, props for trying to rock it.

17Binbag chic at it’s bestShe doesn’t give up

Right, so it didn’t work on it’s own – what can I do to improve the look?

Got it! Adding black tights, PVC knee-high boots and a single black leather glove will really add a touch of class.

17She doesn’t give up on a lookSo many sequins

Well, if you’re going to go for a shiny number you might as well do it properly.

No wonder she has sunnies on, the glare from those rhinestones is quite something.

17Another interesting choice from the superstarWell-heeled

Now most of this look is pretty good – nice swimsuit and a good sarong and shades inclusion.

But Mariah, heels to the beach? Really?

17Heels on the beach – really, Mariah?Credit: XPOSUREPHOTOS.COMFlashing too much flesh

No problem at all with the short skirt and basque combo – she’s still got it after all.

But we really don’t need to be seeing the undies, do we?

17Flashing too much flesh… and some pantsCredit: Rex FeaturesThose tassels

Yes you need to go all out when you’re on stage, but tassels, basque, silver and glitter? That’s more than a few steps too far.

17Mariah lets it all hang outCredit: Getty ImagesOversized

There is oversized and then there is this… shame because that gold dress beneath is HOT.

17Too much fur going on here Mariah!Credit: Getty ImagesShe forgot to get dressed

Another oldie but a goodie, this one is from 2000.

Check out that bod! We still don’t like the outfit but she’s rocking it hard.

17Looks like Mariah had just rocked up straight out of bedCredit: Rex FeaturesIt seems this is a theme

Mariah wore this in 2003 and… well, have a look.

17It seems this is a themeCredit: Rex FeaturesYou’ve been tangoed

You’ve got to be bold to go all in with a colour like this.

Mariah does get marks for attempting to work those sleeves too.

17Orange you glad you wore this, Mariah?Credit: Getty ImagesThe WWE called, they want their belt back

There was a period when over-sized belts were pretty cool, but we’re not sure that was in 2012.

17Then there was this belter…Credit: Rex FeaturesToilet roll chic

The thought was there with this one, you can tell that.

And yet…

17She ruffled a few feathers in thisCredit: Getty ImagesThe essence of the 90s

Nothing screams 90s as much as this outfit, literally nothing:

17Classic 90s girl-next-door from MariahCredit: Getty ImagesTrouser terror

Mariah doesn’t tend to do trousers, and we’ve found the reason why… camel toe alert.

17This is why Mariah is best to steer clear of trousersCredit: AlphapressWedding woe

Mariah married Tommy Mottola in 1993 and she was typically understated when it came to her dress. Or not…

17The not-so-blushing brideCredit: Globe Photos/Alpha