Internet sensation Owl City has held onto the No 1 spot in the singles charts.
The song Fireflies stayed at the top of the charts despite competition from Don't Stop Believin' by the cast of hit television show Glee which rose one place to No 2. The original version of the song by Journey dropped one place to No 8.
Former number one Replay, by Iyaz, dropped one place to No 3, the Official Charts Company said.
Paolo Nutini's Sunny Side Up knocked Florence and The Machine's Lungs off the top of the album charts. It is the third time Nutini's album has topped the charts during the 35 weeks it has spent in the top 40.
Martin Talbot, managing director of The Official Charts Company, said: "It's a great example of an enduring album, which sustains its popularity long after the initial promotion around its release."
Lungs dropped two places to No 3. Alicia Keys rose six places to No 2 with The Element of Freedom.
There were four new entries in this week's album charts.
Hadouken's For The Masses was a new entry at No 19.
The late Del Shannon's greatest hits album Runaway went straight in at No 25 as the 20th anniversary of the musician's suicide approaches next week.
Dolly Parton's Live From London, recorded at the O2 in 2008, was a new entry at 33. Four Tet's There Is Love In You went straight in at 35.