Singer insists the track is "not a single or anything official"
Singer apologises to fans for any offence caused by 'Do They Know It's Christmas?'
Releases by Jake Bugg, Rod Stewart and Daft Punk also feature in 2013's biggest selling albums of 2013
'Wild' singer confirmed her departure from the show last week
'Our Version Of Events' has spent 63 weeks in the Top 10
'Next To Me' singer tweets picture of old granny sticking her middle finger up
'Our Version Of Events' returns to the top of the Official UK Album Chart
Singer will perform last at awards ceremony this evening (February 20)
Mumford & Sons and The Black Keys are also tipped to win on Wednesday (February 20)
Meanwhile, Calvin Harris reclaims the UK Number One album and James Arthur is at the top of the UK Singles Chart
SL20 concert to be held at O2 Arena in April 2013
Adele, Ed Sheeran and Carly Rae Jepson also among the top selling artists of the year
The album in number one position is shy of a million sales
Plan B, Rita Ora and JLS are among the other winners
X Factor girl group Little Mix score a Number One single with 'Wings'
Olympics appearances boost sales of Sande's 'Our Version Of Events'
Singer took the top spot with sales of just over 13,000, the lowest total since July 1994
FUN finally reach Number 1 in UK Singles Chart after seven weeks with 'We Are Young'
Dappy and Brian May fail to knock Gotye off the top spot in UK Singles Chart
DJ Fresh also tops the singles chart as three Whitney Houston tracks re-enter the Top 40