Set your alarm for Saturday, around 8 PM British time. Keep your phone glued to the Glastonbury app from 4 PM onward. The moment the official poster updates, the internet will explode with a thousand “OLIVIA IS ON AT 8:12!” tweets. You’ll know.
Until then, stay hydrated, keep a portable charger handy, and remember: even if you’re late, her songs will still sound amazing when you’re sprinting through a field of confused sheep. Now go practice your pouty-singing face. You’ll need it.