Dusk Till Dawn ZAYN feat. Sia Download 'Dusk Till Dawn' on iTunes
The BRITs performances by Adele, Take That, Plan B, Cee Lo Green and Tinie Tempah are all available to download.
The performances can be purchased at www.itunes.com/brits
The artists have all agreed their proceeds will go the BRIT Awards charity partner, The Brits Trust.
The move could have a major impact on this weekend's Vodafone Freebees Big Top 40 chart.
Last year's only Dizzee Rascal and Florence and the Machine's collaboration of You've Got the (Dirtee) Love was made available and it stormed up the chart.
This morning (Wed 16th February) Adele's 'Someone Like You' is sitting at No 4 in the chart.