For the past few hours I've been watching back a lot of the past Radio 1 Live Lounge sessions, their has been some fantastic performances.

My favourite to date is Ellie Goulding's cover of Rihanna 'Only Girl In The World'

http://www.youtube.com/watch?v=IieOEvzMjng

Whats everyone elses?

For me it was Adele. Loved her version of 'Promise This' (Cheryl Cole Song). A slowed down version - possible cover version single? I'd buy it

For me it was Leona covering Labrinth's Let The Sun Shine.

I've got two; Taylor Swift covering Mumford and Sons 'White Blank Page' and Diana Vickers covering Snow Patrol's 'Just Say Yes'.

The Saturdays - Just The Way You Are

Sugababes - Rabbit Heart. The harmonies are out of this world.

Either Alesha Dixon - Sex On Fire,
or Florence - Halo.

Love those two so much, and I'm not a fan of either of the originals!

Paramore/Hayley Williams - Use Somebody (KOL)

Katy Perry - Electric Feel (think it was done by MGMT originally)

Same.

Adele - Promise This (Cheryl Cole)
JLS - The Fear (Lily Allen)
The Saturdays - Just The Way You Are (Bruno Mars), Higher
Sugababes - Rabbit Heart (Florence + The Machine), About A Girl
Ellie Goulding - Only Girl In The World (Rihanna)

I remember the first time I heard Leona sing Run on Live Lounge. It's been my favourite performance from there ever since.

Stronger covered by 30 Seconds to Mars, amazing

http://www.youtube.com/watch?v=vrlXhpuLfeo

Arctic Monkeys- Love Machine!

The Kooks - Crazy

Luke's a hero

Lenka's cover of Jump In The Pool was probably my favourite, it's incredible.

Poker Face and Viva La Vida - Lady Gaga. She messes up the words a few times on the cover but it's still vocally brilliant.
And as badly as this will go down, The Wanted's version of Animal by Neon Trees is great. I prefer it to the original, and I'm not usually a fan of them at all.

I really like the Noisette's version of When You were young
I quite like Plan B's version of Pass Out it's certainly different but I like it.
Also Adele- Promise this (better than the original imo)
Sam Sparrow - American Boy (nice and jazzy)

Completely forgot about that! Definitely one of my favourites.
Love Example's version of Tik Tok as well.

Sugababes - Rabbit heart
The Saturdays - Winter wonderland and Just the way you are
Pixie Lott - When love takes over

Leona Lewis - Run

I liked that one, but I prefered their cover of Kaiser Chief's Love's Not A Competition (But I'm Winning)

birdys cover of ed sheerans A-team

Taio Cruz - Little lion man
Robyn - Dancing on my own

Leona's BIT/Man Down mash up

Jessie J's cover of a band from New Zealand. If everybody has a link to it please post it.