Dappy is on course to replace Once Direction at number one on the UK singles chart.
The N-Dubz star's debut solo single 'No Regrets' is currently outselling One Direction's current chart-topper 'What Makes You Beautiful'.
Maroon 5's Christina Aguilera-featuring single 'Moves Like Jagger' is at number three, according to the Official Charts Company.
Meanwhile, on the album chart, Kasabian's 'Velociraptor!' is at number one on the midweek countdown.
Current chart-topper Ed Sheeran's debut album '+' is down one place to number two, while Adele's '21' clings onto the number three spot.
The Official album and singles countdowns will be unveiled on Sunday at 7pm (GMT).
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