Jessie J's meteoric rise continued as she stormed to the top of the singles chart to gain her first number one hit.
Hailed as the next big thing in the Birtish music scene, Jessie's single Price Tag went straight in at the top spot, the Official Charts Company said.
This represents the latest success for the Essex-born singer who won the Brit Awards' Critics Choice prize and was named the BBC Sound of 2011.
The singer's debut track Do It Like A Dude reached number two in the UK charts.
Elsewhere in the singles chart, Latin crooner Enrique Iglesias and sidekick Ludacris produced the most risque song title of the week.
Their single - Tonight (I'm F*****' You), was the second highest new entry, straight in at fifth spot.
Last week's number one - We R Who We R, by American singer Kesha, dropped two places to third spot.
In the album chart, the late singer Eva Cassidy had one of the week's highest new entries.
The singer's long player - Simply Eva, went straight in at sixth spot. Cassidy died in 1996.
Soul singer Adele clung on to top spot for the second week running with her latest album 21.