Still riding on the momentum of RTJ3 which they surprise released on Christmas Eve, Run The Jewels are the latest act to be announced for Field Day.
El-P and Killer Mike will close the Eat Your Own Ears outdoor stage at the event which takes place at Victoria Park on 3 June 2017.
The duo join Aphex Twin, Flying Lotus, Nicolas Jaar, Death Grips, Slowdive and Jon Hopkins on the lineup.
The announcement follows news of a Run The Jewels European tour kicking off in March.
Update: Field Day have added a bunch of other names to the bill including previous Crack cover star Abra, elusive hip hop pioneer Clams Casino and viral rap-star Lady Leshurr. Check out the full run of names below.
Abra, Âme (live), Arab Strap, Beak>, Clams Casino, Dekmantel Soundsystem, Idris Ackamoor & The Pyramids, Kite Base, Lady Leshurr, Machinedrum, Manuela, Marc Riley, PC Music presents A.G. Cook, Danny L Harle & more, Pictish Trail, Rae Morris, Sinkane, Thee Oh Sees and Forth Wanderers