We take a look at two chart topping albums from this week in different years...
1977 Beatles - The Beatles Live At The Hollywood Bowl
The Beatles were among the few major recording artists of the 1960s to not have issued a live album.
So, after their break-up, in an attempt to squeeze as much material as possible from them, Capitol Records initially considered releasing their February 1964 concert at Carnegie Hall in New York.
Unable to obtain the necessary approval from the musicians' union, they instead released a compilation of their Hollywood Bowl performances from the 1964 and 1965 American tours.
The quality of both recordings was considered poor, so the tapes from the Hollywood Bowl performances continued to sit untouched in a Capitol vault for more than five years.
Meanwhile, among Beatles fans, pent-up demand for a concert album continued to build. In fact, John Lennon set off a minor frenzy when, in a 1971 Rolling Stone interview, he incorrectly identified an obscure Italian compilation album, The Beatles in Italy, as a live recording ("There's one in Italy apparently, that somebody recorded there").
In 1971, following his salvage project of the Get Back sessions, which was released as the group's Let It Be album, the Hollywood Bowl tapes were given to famed American record producer Phil Spector to see if he could fashion an album out of the material.
Either Spector did not complete the job or his production was unsatisfactory, and the tapes continued to sit unreleased for another half a decade.
Finally, with a rival record label's impending release of the Live! at the Star-Club in Hamburg, Capitol Record's parent company, EMI, decided to revisit the Hollywood Bowl recordings.
Beatles' producer George Martin was handed the tapes and asked to compile a listenable official live album.
Despite the fact that the recordings were between twelve and thirteen years old, the album reached number one.
2005 Coldplay - X & Y
Coldplay’s third album, debuted at the top of the UK chart, moving 464,471 units in its first week. It quickly became the best-selling album worldwide in 2005, shifting 8.3 million units during the year.
The first single, Speed of Sound takes inspiration from the drumbeat of Kate Bush's Running Up That Hill. Coldplay received permission from Kraftwerk to use the main riff from Computer Love for the track Talk, while Brian Eno played backing synthesiser on the track Low. The album's final (hidden) track, 'Til Kingdom Come, was originally written by the band to be recorded by Johnny Cash, but Cash died before he could record the song.