Pop-punksters Koopa have made chart history by becoming the first unsigned band in history to have a UK top 40 single.
The Essex three-piece's Blag, Steal and Borrow debuted at number 31 based on online sales alone, following changes to the way in which weekly sales charts were calculated.
Previously a song could only enter the chart if on sale in CD format as well.
But success for the band, made up of brothers Ollie and Stu Cooper, and Joe Murphy, comes a week later for the Coopers' father Martin, who suffered a fatal heart attack last week.
Clinging on at number one this week in the singles chart is X Factor winner Leona Lewis with A Moment Like This, narrowly beating off the challenge of Proper Education by Eric Prydz v Floyd.
Beirut-born Mika is in the top ten for the first time with Grace Kelly at three, with British rapper Just Jack one behind with Starz in Their Eyes.
In a slow week in the album chart meanwhile, Amy Winehouse's Back to Black, initially released in October, sneaks into the top spot.
Top ten singles
1 A Moment Like This, Leona Lewis
2 Proper Education, Eric Prydz v Floyd
3 Grace Kelly, Mika
4 Starz in Their Eyes, Just Jack
5 Patience, Take That
6 Too Little Too Late, Jojo
7 Boogie 2Nite, Booty Luv
8 Smack That, Akon featuring Eminem
9 Patt (Party all the Time), Sharam
10 Truly Madly Deeply, Cascada
Top five albums
1 Back to Black, Amy Winehouse
2 Undiscovered, James Morrison
3 Eyes Open, Snow Patrol
4 Beautiful World, Take That
5 Costello Music, Fratellis