News Major Lazer out in front, Ellie Goulding at No.2 News World's biggest retailer is struggling to fill its stock lines Analysis Hozier and Fetty Wap are going to be enjoying those royalty cheques for some time to come Analysis Record-breaking album made more than $100m in six weeks News Exec moves over from position as A2IM Chairman Analysis XL-signed star records UK's biggest-selling entertainment product of 2015 Analysis Here's how much money it made in just six weeks Analysis Subscription streaming generates £251m in 2015