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Live tracks of the performances from the Brit Awards are going to be made available to download straight after the ceremony for the first time.

Take That, Rihanna and Mumford & Sons are amongst those due to play live on Tueday night, and have their songs for sale on Apple iTunes.

It comes after a last year's Brits collaboration between Florence & The Machine and Dizzee Rascal was released.

It peaked at number 2 in the UK's official singles chart.

Proceeds from the sales of this evening's performances will go to the Brits Trust.

The show is due to finish at 10pm. The tracks will have two hours worth of sales to be counted if they are to make an impact on Wednesday's official midweek chart update.

Other artists set to perform live at the ceremony at the O2 arena in London include Adele, Plan B and Cee Lo Green.

Tinie Tempah has the most nominations heading into this year's event with four.

He is up for British Album Of The Year, Best Single for Pass Out, Best Breakthrough Act and Best British Male.