Tulisa Contostavlos And Niall Horan Congratulate James Arthur On Number One Single

18 December 2012, 11:57 | Updated: 18 December 2012, 12:06

The 'Young' singer and boy band star have described The X Factor UK winner as a "superstar".

Tulisa Contostavlos and One Direction star Niall Horan are among those to congratulate The X Factor UK 2012 winner James Arthur on his number one single this week.

Fresh from James topping the Vodafone Big Top 40 this past Sunday (16th December) with his winner's single 'Impossible', a cover of Shontelle's original hit, Tulisa took to Twitter to say the chart position was "well deserved".

"Congratulations @JamesArthur23 on your number one!" Tulisa posted last night (17 December). "So well deserved, this is the first of many!"

The 'Live It Up' singer also congratulated her former contestant Ella Henderson on being signed to a deal by Sony, despite failing to make the final three acts on the show.

She posted: "So proud of my girl @Ella_Henderson for getting her record deal. Can't wait to see her take over the world! Love ya babe!!"

One Direction singer Niall Horan also revealed he is a big fan of this year's The X Factor UK singer James when he posted the following yesterday: "Sittin watching @JamesArthur23 winners story! The guy is a super star! End of."

Check out a picture of this year's winner of The X Factor UK, James Arthur, below (Credit: PA):

James seemed to appreciate the gesture when he replied: "@NiallOfficial thanks bro so are you literally! Haha!"

James Arthur is currently number one on the Vodafone Big Top 40 with 'Impossible' and will be hoping to retain his chart position this coming Sunday (23rd December) for the Christmas number one.