Probably two of the most obvious choices but for me they are:
Alexandra Burke & Beyonce - Listen
Ruth Lorenzo - Purple Rain
I always thought Alexandra's solo Listen was better than the final one. The solo one was the one that won it for her. Always seems to go unnoticed that version though.
Comments
OMG yeah I loved that one too
Runners-up include Fleur's Uptown Funk,, Fleur's Lady Marmalade, Luke Friend's I Will Wait, Cher and Will.i.am's duet.
In terms of whole-group performances, when they sang "Signed Sealed Delivered" in the 2013 semis results show was cool.
Ray Quinn 'My Way'
McDonald Brothers '500 Miles'
Brenda Edwards - I'll Never Love This Way Again
Leona Lewis - Summetime
Little Mix - Don't Let Go
Alexandra Burke - Don't Stop the Music
Fleur East - Uptown Funk
Marcus Collins - Are You Gonna Go My Way?
Cher Lloyd - Stay
Diana Vickers - With Or Without You / Man In The Mirror / Smile
Ruth Lorenzo - Purple Rain / Knocking On Heavens Door / Always
I always forget until I do lists like this how far ahead Leona is of everyone that has been before and after her.
Alexandra Burke & Beyonce - Listen
Ruth Lorenzo - Purple Rain
I always thought Alexandra's solo Listen was better than the final one. The solo one was the one that won it for her. Always seems to go unnoticed that version though.
I was going to say this one and I was going to write exactly what you did about her becoming a contender at that point.
Diana Vickers - Man in the Mirror
Ruth Lorenzo - Purple Rain
Leona Lewis - Summertime or I Will Always Love You
In terms of guests performing;
Leona Lewis - Run
Alex/JLS - Mashup.