POP sensation Niall Horan is the one member of One Direction most tickled about their Stateside superstardom.
The Midlands star is often named as the most popular member of the band across the Atlantic because of his blonde, all-American good looks.
The band's stylist – who has dressed the five singers since they first emerged from 'the X Factor' as a fledgling boyband – said Niall was the most thrilled about their American popularity, which culminated in their Madison Square Garden concert this Christmas.
Celebrity stylist Caroline Watson – who works with the heartthrobs every day – said the concert was one of her best memories of the past two years.
She said: "They were so excited, especially Niall as he loves American culture.
"Their families and girlfriends were over there, too. It was the biggest show and the highlight of my career."
The pop star flew his mother, Maura, to New York for the concert in the legendary venue to end the year on a high after smashing records by hitting the No 1 spot in the US charts with both their albums.