It's been three long years, but Glastonbury Festival is back!Lauren Laverne and Jack Saunders welcome you to the green fields of Worthy Farm, which once again will become one of the biggest music festivals on the planet. For the first time, they broadcast live from site on a Thursday night.From their bird's-eye view over the festival at The Park, Lauren and Jack take a look at what's coming up over the weekend and investigate what the cows have been doing for the last three years. They're joined by special guests and bespoke acoustic performances.Also joining the BBC Two gang is a Glastonbury first-timer, BBC 1Xtra's Remi Burgz, who will be exploring every corner of the festival.