No wonder she didn't arrive with him! Kylie Jenner poses alone as Jaden Smith turns up in bizarre outfit for the world premiere of Believe

Kylie Jenner recently admitted she'd love to go to her prom with her BFF Jaden Smith.

But the pair kept their distance on Wednesday night as they attended the world premiere of Justin Bieber's Believe in Los Angeles.

And it's no wonder why Kylie, 16, preferred to pose by herself than alongside her 15-year-old pal.

As the Keeping Up With The Kardashians star arrived in a stunning thigh-high-slit maxi skirt, Jaden turned up in a wacky ensemble of clashing patterns.

Clashing: Kylie Jenner, left, shined in a thigh-high-slit skirt, as Jade Smith, right, arrived in a bizarre outfit for the world premiere of Justin Bieber's Believe in Los Angeles, California on Wednesday

Having stylish sisters Kim, Khloe, and Kourtney Kardashian to look up to, Kylie was sure to look her absolute best for the event, which was presented by Teen Vogue and sponsored by Clearasil.

Accentuating her slim shape, the teen star teamed her high-waisted skirt with a cropped white shirt that showed off her taut tummy.

And adding a hip flair, she teamed the pieces with a pair of sky-high strappy stilettos.

Sassy for sixteen: The reality TV star strutted around in a pair of stylish strappy stilettos

Jaden Smith gives Kylie Jenner a friendly squeeze at premiere

Effortlessly chic: Kylie looked California cool with her relaxed ombre hair and casual crop top

Looking effortlessly cool, Kylie styled her ombre locks in loose waves and brushed on some make-up to highlight her big eyes.

Though she certainly appeared to attract attention, Kylie insisted she's single during a recent interview for the annual prom issue of Seventeen magazine.

'I don’t have a boyfriend, but I do really want that boyfriend prom experience,' the 16-year-old told the publication.

Little gangsta? Jaden kept a stern expression whilst crossing his hands and flashing peace signs

That's better! Later, the son of Will Smith and Jada Pinkett Smith smiled as he wandered down the carpet

And if she couldn't find a date, she 'would want to go with one of my best guy friends, like Jaden [Smith]. I know I’d have fun with him - he makes me laugh and he is a great dancer.'

Kylie has been spending a lot of time with Jaden - who is Will Smith's son - even shopping for jewelry with him in LA on November 19.

And on December 12 they looked very close as they went out for smoothies in Malibu.

Fan friendly: Both stars stopped to take pictures with their doting fans