Britain's politicians have revealed their musical tastes - and most of them are stuck in the 1970s.
The British Library asked MPs to name their favourite number one album.
Led Zeppelin's 1969 classic Led Zeppelin II came out on top, with Pink Floyd and Deep Purple also proving popular.
Lib Dem MP Lembit Opik said: "Zeppelin made a new kind of music. They created a genre many have copied but no-one has equalled. And Whole Lotta Love is the greatest rock song ever."
Conservative MP Damian Green dubbed it "the ultimate album for teenage boys - metal as art. No-one ever topped it. The opening riff is straightforward perfection".
Labour MP Alison Seabeck said: "Led Zeppelin simply blew me away."
The Beatles proved the most popular band. Culture Secretary Tessa Jowell opted for Sgt Pepper's Lonely Hearts Club Band, while Education Secretary Alan Johnson preferred Revolver. Former Tory leader Michael Howard went for the White Album.
Among the more daring choices was Never Mind The Bolloocks Here's The Sex Pistols, nominated by Labour MP Greg Pope."It changed the face of music forever and meant we never had to listen to Boney M again," he said.
Respect MP George Galloway chose Blood On The Tracks by Bob Dylan.
Rosemary McKenna, Labour MP, picked the Saturday Night Fever soundtrack.
"It's a fantastic dance album and never fails to make me smile. It's the most played on my iPod and in my car," she said.
Dare by Human League is the favourite of Lib Dem MP Mark Oaten. "This album reminds me of my last year at school and brings up a lot of happy memories. Every track is a killer, not a filler," he said.
Welsh Secretary Peter Hain chose local band Manic Street Preachers for their album This Is My Truth Tell Me Yours.
Some of the politicians showed a fondness for relatively recent Britpop - Lib Dem MP Jo Swinson named (What's The Story) Morning Glory? by Oasis as her favourite.