It's France's biggest music festival, drawing up to 300,000 people to the little town of Clisson every year. We check in with music critic Marjorie Hache who brings us the latest from Hellfest, with headliners Judas Priest, Korn, Linkin Park and British rockers Muse debuting their new single at this year's festival. We also get a glimpse of a new exhibition at La Dfense showcasing the huge diversity of street art from around the world, and learn how the V&A museum in London has taken a radical new approach to their collections.