Mark Radcliffe and Alice Levine introduce highlights from two contrasting artists performing on the Pyramid Stage on day one of the Glastonbury Festival. Starting off with Glastonbury debutant, legendary US singer-songwriter Kris Kristofferson, who performs some of his classic hits. Kris is followed by Brighton riff-tastic duo Royal Blood, who are fast becoming festival favourites following the success of their debut back in 2014, and no doubt more and bigger success is on the cards with the release of their much anticipated second album How Did We Get So Dark.