For some, the time when Madonna had something halfway interesting to say has long since gone, but when it comes to her back catalogue (almost 40 Top 10 UK and US chart smashes), it’s hard to argue with the quality and status. Or, indeed, the impact and influence she has had on contemporary music over the past 25 years. So if the albums of the last decade ( Ray of Light, Music, American Life, Confessions on a Dance Floor) haven’t done it for you, then bask, surely, in the remastered glory of Material Girl, Into the Groove, Justify My Love, You’ll See, Express Yourself, Ray of Light and Hollywood . In a nutshell: top pop tunes from the world’s most successful female chart act.