"Lifeline" - Jamiroquai.
Ideally I'd have had the title track of "Rock Dust Light Star" as it was one of my most played songs during the first half of 2011, however it is disqualified due to my rule that if it was released the previous year, it doesn't get in my chart if I was aware of it last year. "Lifeline" is in the chart on a technicality that it was released as a single this year, therefore meeting my 2011-50 chart criteria. Just thought I'd clear that up!!
Whilst on holiday in Pisa in May, I frequently heard this song on the radio and that's what made me rediscover it. "Lifeline" continues in the same mellow mood as previous single "Blue Skies" but has a more jazzy feel to it. The song never troubled the UK chart (surprise surprise) but thankfully they still have a huge international fanbase and that is clearly reflected in the video: http://www.youtube.com/watch?v=K4wvO9yT5hk