We caught up with the pressing of the Secret 7″s at The Vinyl Factory in Hayes to watch the birth of these charitable 45’s.

Combining art and music for a good cause, this year’s Secret 7″ is raising money for Art Against Knives by pressing 100 copies of 7 singles from artists across genres, each with a bespoke record sleeve designed by one of 700 distinguished artists and designers.

The 700 sleeves, on display downstairs at Mother in Shoreditch in London on the 13th and 14th April, will then be available to buy for £40 a piece on Record Store Day on April 20th. The secret bit? Buy a copy and you won’t know which track you’ve bought or who designed the sleeve.

Having raised over £30,000 last year, Secret 7″ have enlisted a series of high profile artists and musicians for the wax and the sleeves alike, with the seven singles provided by Elton John, Public Enemy, Jessie Ware, Nick Drake, Haim, Laura Marling and Nas.

Furthermore, among the 700 copies on offer, some lucky bidders will receive sleeves designed by Gilbert & George, David Shrigley or Ai Wei Wei alongside designs from photographers, illustrators, painters and graffiti artists, as well big names in the album artwork world.

For more info, visit the Secret 7″ website. The Secret 7″ exhibition will take place on the weekend of the 13th and 14th April at the Mother London Biscuit Building, 10 Redchurch Street, London, E2 7DD and will be available to buy on Record Store Day on 20th April 2013.