The first episode of Friends aired in 1994, introducing Jennifer Aniston as Rachel Green, Courtney Cox as Monica Geller and Lisa Kudrow as Phoebe Buffay to our screens

Whose love of a sleeveless denim shirt set hearts aflutter

Whose style was classic and elegant

Who loved mismatching prints and plenty of colour

And this sweet look, in which she pared a classic dungaree with a fitted white t-shirt, created a classic all-American sweetheart look

But why would you ever stop wearing them when you look THAT good in them?

While here she throws a fitted jacket over the top, and pairs with white sneakers, to pull of the classic Rachel look. And yes we did spend hours in our bedrooms trying to cut out dungarees off like this, and we bet you did too

Though her glossy, heavy fringed, layered bob sparked many a imitation

But her eclectic taste in fashion felt right on trend in the early 90s

Rachel's sleek bob was another hairstyle that set off a worldwide trend. But fans also loved her classic style which often saw her pair vintage - unfitted - pieces, like this sweater, with a more feminine skirt or dress

Seriously, that girl really knew how to work a sweater...

Note the 15 denier tights, another late 90's trend (though one we'd rather forget)

Monica (and Rachel) loved to wear a fitted cardigan over most outfits, be that a strapless dress or a jean and t pairing. Cue teenage girls rocking the 'glam cardi' (as opposed to the gran cardi!) across the throughout summer of 98.

Even Phoebe got in on the action

The perfect Phoebe outfit

Thin, long scarves - a bit like ties - remember them? You can thank Monica Geller for that particular trend too - she wore a LOT of them, no matter the time of year

Another scarf/tie affair - this time matchy matchy!

Monica gave great jumper, here she manages to make a turtleneck look fashion forward - no doubt giving knitwear sales at M&S a massive boost

And once she ditched the fringe, Monica's hair became as coveted as Rachel's

Thanks to her ever-changing hairstyles during the early series and her love of colour, Phoebe was a fashion inspiration for many a bold palette loving teen girl

Long before Beyonce was rocking statement jewellery, there was Phoebe Buffay

And her classic half-updo was another look copied by many a teen girl

This hideous pink affair was forced upon Rachel when her best friend married her ex-fiancé Barry and the lucky girl got the be bridesmaid!

We will put this monstrous fashion choice down to the hormones of youth, and the questionable influence of 80's fashion

We shall move swiftly on

Poor Monica was forced into a bad cornrow experience after her hair responded very badly to humidity while on holiday

For those who needed reminding (or just a good laugh)

Not strictly a fashion or beauty moment, we couldn't deny you this awesome shot of Monica mid dance-off with brother Ross (Ed's note: seriously go and watch the whole thing NOW)

This flashback shot, to Monica's young and more substantial years, gave us a glimpse of a young Miss Gellar in all her glory

This mid cropped plaid shirt, that Rachel works in the launderette before later sharing her first kiss with Ross, was another staple look for the character

While Phoebe's fashion went a bit leftfield in a scene where she her ex-husband reveals he was no longer gay (she'd married him when she thought he was gay. It's complicated)

While there's one frontrunner in terms of 90's on screen appearances of the kilt (hello Cher Horowitz) this scene also helped confirm a cute, short kilt was THE fashion item of the decade

Obviously Phoebe sleeps in a massive striped onesie, while Monica dons a simple, black silk two piece PJ set. Note, Phoebe's awesome top knot

Before Kate Middleton and before Kate Moss, there were three wedding looks that the world cared about

Rachel never did say the big 'I do' but she did make it to the aisle in a very big white dress. This is the first time we see her on the show, resplendent in white having run away from fiancé Barry because of pre-wedding jitters

Monica attempted to get her dress from a knock-off store but had to relinquish the gown after another woman who wanted it blackmails her by booking her wedding band. Regardless, she looked stunning in her second choice white dress.

Phoebe, too, stunned and surprised by opting for a simple and elegant white gown and veil

While Rachel's famous bob was the real trendsetter, this look was also much copied

Here's Monica in a sexy all-in-one catsuit

Making many a teenage boys fantasy a reality

Not quite as sexy but just as amusing

One of Phoebe's best sartorial moments, in the video for her single 'Smelly Cat'. Seriously, forget Lady Gaga, this is how music videos should be

After being challenged to seduce Chandler to make him finally admit to his relationship with Monica

And who can forgot Monica's stint as a waitress at the Moondance Diner where she has to wear a wig, rollerskates and fake breasts

'Dressing up', in the adult sense of the term, here's Rachel in full sex kitten mode after heading for a night of passion with Josh only to be met at the house by his parents

As every fashion loving woman knows, the most important accessory of all is a great set of friends. Here's Rachel, Monica and Phoebe celebrating just that fact