Pop newcomer Mika has scored his debut UK number one hit, ending X Factor winner Leona Lewis's reign at the top.
Mika leads three new artists in this week's top three singles places
Beirut-born, London-based Mika, who topped the BBC's Sound of 2007 poll earlier this month, has risen two places with his single Grace Kelly.
Lewis slipped to number six after four weeks on top with A Moment Like This.
And Doctor Who star Billie Piper's 1999 hit Honey to the Bee appeared at number 17 thanks to new chart rules after a campaign by BBC Radio 1's Chris Moyles.
Moyles asked listeners to download the song to see if he could influence the new charts.
TOP FIVE UK SINGLES
1. Mika - Grace Kelly
2. Just Jack - Starz in Their Eyes
3. The View - Same Jeans
4. JoJo - Too Little Too Late
5. Eric Prydz vs Floyd - Proper Education
Source: Official UK Charts Company
Rules changed at the start of January to mean all downloads count towards the chart - no matter when they were released or whether a CD single version is out.
The top three on this week's chart were all by new artists, with Just Jack at two with Starz in Their Eyes and rock band The View at three with Same Jeans.
Soul singer Amy Winehouse kept her place at the top of the album chart with Back to Black, while James Morrison remained in second place with Undiscovered.
Lily Allen rose seven places to number six with Alright, Still... five days after receiving four Brit Award nominations.