Summer music 101: a pop refresher

It is unlikely you've made it this far into 2015 without hearing Mark Ronson's ubiquitous track "Uptown Funk" featuring Bruno Mars. Released in January, the LP includes collaborations with soul legend Stevie Wonder, rapper Mystikal and author Michael Chabon. Diplo, Avicii and Kanye West lend a hand, and Mike Tyson, Nas, Chance The Rapper and Nick Minaj feature on tracks.