R'n'B singer songwriter Jason Derulo has rocketed straight to the top of the singles chart with his new release Don't Wanna Go Home, the Official Charts Company said.
It is the second UK number one for the 21-year-old following on from last year's In My Head.
Derulo, from Miami, started his career writing songs for the likes of P Diddy, Lil Wayne, and Sean Kingston.
Dance act Example was knocked down one place to number two with Changed The Way You Kiss Me, while Calvin Harris featuring Kelis was down one to three with Bounce.
The second new entry in the Top 10 was Badman Riddim (Jump) from Dutch dirty house DJ and producer Vato Gonzalez.
The track features UK hip hop and grime collective Foreign Beggars and went straight in at number seven.
In the albums chart Lady Gaga's Born This Way bounced back to the summit for a second stint at number one. The album spent the last two weeks at number three but hit the top spot for two weeks when it was released in May.
Adele still had two albums in the top five, 21 at number two and 19 at number five.
Take That's Progress was down from number one to number three.
And there was a new entry for Bon Iver with Bon Iver in at four. Other new entries included Planet Pit from Pitbull at 18 and 15 Minutes from Barry Manilow at 20.