Uke-wielding, brace-snapping former beardies Mumford and Sons, whose frontman Marcus worked on the soundtrack to Inside Llewyn Davis, return to the festival as main-stage headliners four years after playing the NME/Radio 1 tent. It's their first UK live show in over two years and signals that tracks recorded at their sessions with Arctic Monkeys producer James Ford could be winging their way to us very soon.
Leeds Festival boss Melvin Benn is keeping tight-lipped about the third main-stage headliner.
Continuing the teasing theme, Melvin has named just ten more acts that will perform across the festival. Those names include two-man rock powerhouse Royal Blood; local favourites Bastille, who catapulted to bigger stages following their performance at Live at Leeds in 2012; EDM man deadmau5; dancehall supergroup Rebel Sound (Chase and Status, Rage, David Rodigan and Shy FX); and fast-rising Welsh indie band Catfish and The Bottlemen.
They're joined by BBC Sound of 2015 Poll winners Years and Years, scuzzy grunge-pop outfit Wolf Alice, indie-punk four-piece Pretty Vicious, Jack Garratt and DJ Hannah Wants, making her Leeds Festival debut.
They join last year's Glastonbury headliners Metallica, the freshly-returned and still mighty fine Jamie T, ferociously brilliant hip-hop duo Run the Jewels, reformed hardcore-punk act Refused, Pierce the Veil, Wilkinson and Manchester Orchestra.
Who would you like added to all that lot, then?
For more, visit the Leeds Festival site.