Jessie J has topped the UK singles chart with her new single ‘Price Tag’.

The track, which features the US rapper B.O.B, is the first single to debut at number one after being released on the same day it was played on radio.

Last month, Universal – Jessie J's label – and Sony announced that they had signed up to the On Air, On Sale initiative championed by the Featured Artists' Coalition.

Jessie J’s debut single ‘Do It Like A Dude’ is also at number seven, according to the Official Charts Company.

There were two other new entries in this week’s top-10: Enrique Iglesias’ ‘Tonight (I'm F*ckin' You)’ featuring rapper Ludacris went straight in at number five, while Taio Cruz’s ‘Higher’ featuring Travie McCoy and Kylie Minogue moved up to number eight from last week’s number 17.

Meanwhile, on the album chart, Adele’s ‘21’ remained at number one for a second week, while her debut LP ‘19’ is also at number four.

Chase & Status score their highest ever position on the album chart with ‘No More Idols’ debuting at number two.

(by Jason Gregory)