Coldplay's third album X&Y has rocketed to the top of the album chart and is on course to become one of the biggest sellers of all time.
Three of Coldplay's albums are currently in the top 30
It is believed 464,000 copies were sold by Saturday, making it the second fastest-selling album since records began in the early 1990s.
Only the 1997 Oasis album, Be Here Now, has ever performed better in its first week, with 695,761 copies sold.
X&Y knocked Oasis' newest album, Don't Believe The Truth, from the top spot.
HMV spokesman Gennaro Castaldo said: "This has been an important event for the industry, we've been waiting for this release for a long time."
Coldplay's earlier albums, Parachutes and A Rush of Blood to the Head, also re-entered the chart on Sunday, at numbers 19 and 23.
The White Stripes' album Get Behind Me Satan came in at number three in the albums chart.
Meanwhile, in the singles chart, the Crazy Frog ringtone reworking of Harold Faltermeyer's classic Axel F held on to the number one spot for a third week.
At number two was U2's City of Blinding Lights, while Lonely, by Akon, dropped down one place to number three.