Siobhan was one of the original Sugababes. She left and made a decent solo album called Revolution In Me. Then, in 2007, she released a second album, Ghosts, which was BRILLIANT. It didn't do very well in the charts despite good reviews and an appearance on Loose Women (she must feel so bitter), and there have been no releases since.
I hope to hear more from her soon. As you can hear, Ghosts is laden with studio effects and some of the vocals seem to be played backwards. A pretty hard track to sing live then? Nope, nailed it (see below). AMAZING. Especially when you consider that many pop stars struggle to sing songs that are not backwards, live.