The acclaimed country star performed the ‘Golden Hour’ track while aptly sitting atop a rainbow, with Martin backing her on piano.
The latest performance of the track comes after Musgraves previously delivered an impressive rendition at the Grammys, where she cooped the coveted Album of the Year award. You can watch the latest performance in full below.
Musgraves’ performance with Martin follows another star-studded duet last month, when she joined forces with Paramore’s Hayley Williams in Nashville.
Naming ‘High Horse’ as one of the best songs of 2018, NME wrote: “One of the early singles released from Kacey Musgraves’ critically acclaimed ‘Golden Hour’, ‘High Horse’ fused two genres often seen at opposing poles – country and disco – to create one of the most infectious pop songs of 2018.”