What happened with Oklou and Underscores?

Oklou brought Underscores onstage at Coachella 2026

Oklou used her Coachella 2026 set to turn a solo performance into a moment of collaboration, inviting special guests during her onstage appearance.

The biggest of those guests was her collaborator Underscores. Together, they performed “Harvest Sky,” with both artists sharing the spotlight during the live rendition.

Coachella sets often work as a mix of prepared material and spontaneous turns, and guest appearances like this can matter for fans because they provide a live proof-of-concept for studio chemistry. For listeners who connect with an artist through a particular track, a guest-synchronized performance can also make a song feel newly “arranged” in public—especially when the guest is directly tied to the track’s creative origin.

From an industry perspective, these moments also function like quick, high-visibility networking: guest spots reinforce creative partnerships and help artists reach each other’s followings in a single, shareable performance clip.

With Oklou and Underscores delivering the track as a duo, the performance stands out as more than background festival content—it becomes a collaboration headline within the set itself.

Key takeaways

• Underscores joined Oklou as the main guest.
• They performed “Harvest Sky” live.
• The move reinforces their creative partnership and gives fans a definitive Coachella collaboration moment.