not sure if this is new or not, its a leak from ne-yo titled 'Lincoln Continental'. Its a demo for Sugababes' upcoming album 'Sweet 7'.
they confirmed this in an interview late last year. Amelle stated she liked a track called 'Firefly' which didnt make the final cut. Heidi said she liked lincoln continental, and was also dissapointed it didnt make the final album.
whether it will be recorded with jade or not i dont know, but i doubt it. If it didnt make the origonal cut, its not likely to make the new one.
http://www.youtube.com/watch?v=HAdDciXTMkc
its ok, not anything amazing.