No, it's not Frank Ocean.
Grime star Stormzy will headline the main stage on Friday.
The singer, whose real name is Michael Omari, is one of the biggest solo male acts on the planet. His debut album, Gang Signs And Prayer, shot to the top of the UK album charts last week after racking up the most first-week streams for a number one album in history.
Longitude delayed announcing its Friday headliner as the festival's line-up was released last week. Fans had speculated that it would be revealed as Frank Ocean or Chance the Rapper.
Stormzy will join headliners The Weeknd, Mumford and Sons and acts such as Skepta, Picture This, Wiley, Dua Lipa, Jack Garratt, Glass Animals, Jorja Smith, Baaba Maal and much more.
Tickets go on sale Friday, March 10 at 9am.
Weekend tickets: €189.50. Two-day tickets: €129.50. Day tickets: €69.50