The songs, which will come in three bundles of four songs, are by the artists featured in iTunes New For 2013 list. Azealia Banks, recently embroiled in a Twitter spat with rap rival Angel Haze, and this week's NME cover stars Haim are among those included in the first batch, released on Monday, January 7. 'Liquorice' and 'Send Me Down' respectively are the tracks that will be made available.
It's completed by Gabrielle Aplin's Salvation and Rudimental's 'Not Giving In' featuring John Newman & Alex Clare.
Batch two, available on Friday January 11, features Disclosure's 'Flow', 'Like The Morning Dew' by BRITs Critics' Choice nominee Laura Mvula, 'Sleepsong' by Bastille, and 'The City' by 1975.
Finally, the third batch, released on Tuesday, January 15, includes Kodaline's 'Perfect World', 'Echo' by Foxes, 'Smother' by Daughter and 'Waterproof' by Syron. iTunes Music staff chose the 12 bands on the list, based on who they believe will succeed in the coming year.
Haim were also revealed as the winner of the BBC's Sound Of 2013 poll, decided by 213 influential radio DJs, bloggers and music journalists – including several NME staff. NME's New Bands Editor Matt Wilkinson told the BBC: "After years of boring indie bands who seem to almost be embarrassed to be featured on mainstream radio or in magazines like NME, Haim are a shining light. Not only do they write brilliant songs, but they also want to be a really big deal. We knew this when we first profiled them last April; the fact they are now getting wider recognition is no real surprise – they have a knack for writing amazingly catchy singles, they're a killer live band and they talk-the-talk miles better than most other new bands. It's a rare and exciting combination."