Arctic Monkeys land fifth number one
Rock group Arctic Monkeys have scored a fifth number one on the UK top 40 with their latest album, AM.
All five of the band's albums have hit the top, the first time that feat has been achieved on an independent label, said the Official Charts Company.
AM sold 157,000 copies last week. Only Daft Punk's Random Access Memories has had better first-week sales in 2013, shifting 165,000 copies in May.
Meanwhile, Katy Perry stayed at the top of the singles chart with Roar.
Her jungle-flavoured power ballad held off stiff competition from US rock act OneRepublic, whose single Counting Stars climbed from 13 to two.
Ellie Goulding slipped one place to number three with Burn, followed by Avicii's former number one Wake Me Up.
Hold On We're Going Home by Drake, featuring Majid Jordan, rounded off the top five.
Coldplay had the highest new entry, at 12, with Atlas - the theme to forthcoming action movie Hunger Games: Catching Fire.
Example, Lethal Bizzle and Ben Pearce also scored new entries - but MKS, the new name for the old Sugababes, failed to make the top 40 with their comeback single Flatline.Mercury prize
Arctic Monkeys set sales records with their debut album, Whatever People Say I Am, That's What I'm Not, in 2006 when it sold more than 363,735 copies in its first week on the shelves.
It is still the fastest-selling debut album by a band in UK chart history - although Susan Boyle sold more as a solo artist in 2009, when 411,820 people bought I Dreamed A Dream.
With its focus on backing vocals and supple R&B grooves, AM is a slower, funkier album than the quartet's frenetic debut.
"The grooves on this record lean back a bit," frontman Alex Turner told Jo Whiley earlier this week.
The album earned the band a nomination for the Mercury Prize earlier this week - unlike Indie pop group London Grammar, who had been many critics' favourites for the £20,000 prize.
The trio may be consoled by the fact their debut album, If You Wait, has entered the chart at number two.
Last week's number one, by The 1975, dropped to number three. There were new entries at number four, for Goldfrapp's Tales of Us, and five, for Snapshots by Irish teenagers The Strypes.
Rod Stewart's recent album Time jumped back up the charts from 25 to six, following his appearance on the launch episode of Strictly Come Dancing.
There were also new entries for R&B artists Weeknd and Janelle Monae, whose latest albums debuted at 12 and 14 respectively.
Between them came The Clash's new best-of compilation The Clash Hit Back, which recreates a set list from the band's 1982 tour.
"Congratulations to the unstoppable Arctic Monkeys and all at Domino Records," said Martin Talbot, chief executive of the Official Charts Company.
"Scoring a fifth official number one studio album in a row is an exceptional achievement."