WATCH: Gwen Stefani unveils new video

Eight years on from The Sweet Escape, a new Gwen Stefani solo album finally seems to be on the horizon. No title or release date as yet, but we have heard comeback single 'Baby Don't Lie'. Today brings another new tune, complete with video. 'Spark The Fire' is produced by Pharrell and the clip also features the 'Happy' singer's disembodied head. So that's nice.