The latest winner of the series couldn't quite beat Ed Sheeran, who topped this week's chart.
Rak-Su were crowned the winners of The X Factor 2017 on Sunday, beating Grace Davies in the final showdown.
The pair were top of the vote at Saturday night's freeze where Kevin Davy White went home, finishing in third place.
Dimelo is Rak-Su's winner's duet, featuring rapper Wyclef Jean and producer Naughty Boy on the group's owns original song.
After Rak-Su were announced the winner, they gave a live performance of the track before its immediate release online to download and stream.
Like other recent X Factor winners, Rak-Su were always at a bit of a disadvantage in the race for Number one due to the shift in chart week.
The moving of the charts in 2015 from Sunday to Friday means that X Factor winners lose three days worth of sales when their single is released on Sunday night.
Rak-Su's second place debut is up on Matt Terry's Number 3 last year and Louisa Johnson who finished at Number 9 in 2015.
But can they climb to Number 1 in their first full week on sale?
Neither Matt nor Louisa ever made it to the top spot, the only X Factor winners so far to fail to do so.
Check back next Friday to see whether or not Rak-Su can do it.