Former X Factor finalist Cher Lloyd has gone straight to number one in the UK charts with her debut single Swagger Jagger.

The 18-year-old – who finished fourth in the 2010 series of the show – knocked former X Factor runners-up JLS off the top spot with their latest single She Makes Me Wanna.

“Having a number one was the best thing I could have asked for,” said Cher, who had been tipped to take pole position earlier this week after it was revealed the song was top of the iTunes chart.

However the teenager also revealed that if she did reach number one she would not be celebrating with a wild night out.

“I’ll probably just have a night in with a Chinese and a glass of bubbly,” she told The Sun.

Cher – who is signed to Simon Cowell’s company Syco Music – is the second finalist from the 2010 series of The X Factor to score a chart-topper in the UK.

Series winner Matt Cardle scored last year’s Christmas number one with his debut single When We Collide, and is due to release his debut album in October this year.

Runner-up Rebecca Ferguson is set to release an album in November while the debut single from third-placed act One Direction is scheduled for release in the autumn.