Katy Perry has scored her third UK number one single with 'Part of Me'.
The track ends Gotye and Kimbra's four-week consecutive reign at the top spot, with 'Somebody That I Used to Know' falling to this week's third position.
Sean Paul returned to the singles chart with '
She Doesn't Mind' landing in second place, while Labrinth went straight in at four with '
Last Time'.
JLS's Sport Relief charity single '
Proud' gave them another UK Top 10 hit at six, while You Me at Six scored a new entry at 23 with 'The Swarm'.
Nicki Minaj dropped three places from last week's runner-up spot to number five with 'Starships', and Alexandra Burke tumbled nine places from three to this week's number 12 with 'Elephant'.
Florence + the Machine achieved this week's biggest climber, with 'Shake It Out' returning to the top 40 at 35, with a climb of 52 places.
Azealia Banks reached a new peak with '212', which climbed four places to this week's 20 position.
Source: Official Charts Company