It's been six months since her debut single Sax became a top 3 hit in the UK, and now it's beginning to gain traction in America.
This morning, Fleur confirmed that she will perform on the grand finale of Dancing With The Stars on Tuesday.
"BIG NEWS! I'll be performing Sax on @DancingABC!!!!!!!!! SO, SO, SO EXCITED!!!" she wrote on her Twitter page.
The gig is a massive deal for Fleur, as Dancing With The Stars - which airs on the ABC network - regularly attracts audiences of over 12million viewers.
She will share the stage with other big name guests, including Fifth Harmony, Pitbull and Aloe Blacc.
Fleur was the breakout star from The X Factor's eleventh series in 2014, despite finishing as runner-up to Ben Haenow, who has since been dropped by Simon Cowell.
Her debut album Love, Sax and Flashbacks reached number 14 in December - although its second single 'More & More' failed to make an impact on the charts.