Even Alexa Chung has admitted the One Direction babe has a certain charm about him.

‘The thing is though he's pretty amazing,’ she said at the Mulberry fashion show on Monday.

‘He's got a magnetic quality about him and if he looks at you it's like staring into the face of a lighthouse.

‘I don't know what it is about that boy, he's just incredibly charming,’ added the Mulberry muse.

That clears that up then… it’s because he’s a lighthouse?

The One Direction heartthrob – who has dated Caroline Flack and Taylor Swift in the past - has reportedly turned his ‘lighthouse’ charm with model of the moment Cara Delevingne.

Cara has been very busy with LFW fashion shows of late, which might explain why the boyband star has been hitting up so many.

It was reported that the pair, who were rumoured to have enjoyed a string of dates last summer, were spotted together at a show after-party on Saturday night.

One fan tweeted photographic evidence that Harry had sneaked into the fashion bash, writing: ‘#NEW Harry at W Magazine’s party tonight!’

It was the second time in a week that 19-year-old Harry had been located by Twitter. A few days earlier another fan revealed that exes Harry and Cara appeared to be back on by posting a picture of them sharing a secret date at the theatre.