X Factor's Alexandra Burke Wows Fans Alongside Elton John

X Factor winner Alexandra Burke made her highest profile performance to date in London on New Years Eve.

The 20-year-old, who won the talent contest three weeks ago, performed ahead of Sir Elton John at the O2 Arena.

Burke was backed by a full gospel choir as she sung her number one cover of Leonard Cohen's 'Hallelujah'.

She also later joined Sir Elton and Will Young for a rendition of 'Auld Lang Syne' to welcome in the New Year.

Sir Elton headlined the concert with a set that spanned his entire career, including such hits as 'Candle In The Wind' and 'Tiny Dancer'.

As previously reported on Gigwise, Burke's version of 'Hallelujah', was the biggest selling single of 2008 in the UK, selling over 800,000 copies in just two weeks.

Alexandra Burke and Sir Elton John