A second Comic Relief single has knocked the Sugababes vs Girls Aloud's Walk This Way off the top of the chart.
The Proclaimers' hit (I'm Gonna Be) 500 Miles, starring comedians Peter Kay and Matt Lucas, climbed to number one after entering the chart at three last week.
Walk This Way dropped to number two, while Avril Lavigne had the top 10's only new entry with Girlfriend, going in at number three.
In the album chart, Take That are back on top with Beautiful World.
Avril Lavigne is the only new entry in this week's top 10
They've swapped places with X Factor runner-up Ray Quinn, whose album Doing It My Way fell to number two.
The Kaiser Chiefs climbed from six to three with Yours Truly, Angry Mob, while Enter Shikari were at number four with their debut, Take To The Skies.
Other big movers in the singles chart included Maximo Park with Our Velocity, which climbed 21 places to nine, and Alex Gaudino who saw his Destination Calabria climb 13 places to number five.