The Vamps' Tristan Evans twerks when trying to impress a girl.

The 19-year-old singer uses the dance move famed by Miley Cyrus - which involves shaking the butt up and down while thrusting the hips in a sexually provocative manner - when he's hitting on a girl, before starting a conversation with her.

Quizzing on how he lets a girl know he is interested, he said: ''I zoom up, do a little bit of Twerking and then I'm like 'Oh hey babe.' ''

Bandmate James McVey added: ''Tristan is always very to the point. He'll go up to a girl straight away, say he likes her, and then get a straight yes or no.''

Although the boys ''love'' their fans they're not so keen on the ''disgusting'' kinky comments left by some, which they liken to erotic novel '50 Shades of Grey'.

James explained to We Love Pop magazine: ''We love all our fans but sometimes they write pretty disgusting stuff. I don't know how the other guys feel, but I like self-respect and you get some people and I'm like, 'How do you even think of that stuff?! It's like '50 Shades of Grey'. ''