Glastonbury 2019 Headliners: 15 Biggest Rumours You Need To Know
15. ABBA
By AVRO (FTA001019454_012 from Beeld & Geluid wiki) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
Fresh off revived interest in their music thanks to Mama Mia: Here We Go Again, the Swedish pop icons are hotly tipped to play in the usual old school slot at next year's event.
