Watch Kacey Musgraves perform “Rainbow” with Chris Martin at 2019 iHeartRadio Awards

Ariana Grande was also among the performers at this year’s ceremony.

March 15, 2019
Watch Kacey Musgraves perform “Rainbow” with Chris Martin at 2019 iHeartRadio Awards Kacey Musgraves performs on stage at the 2019 iHeartRadio Music Awards at the Microsoft Theater on March 14, 2019 in Los Angeles, California.   Kevin Winter/Getty

Kacey Musgraves and Ariana Grande performed at the 2019 iHeartRadio Music Awards at the Forum in Los Angeles on Thursday night. Musgraves was joined for her rendition of "Rainbow" by Coldplay's Chris Martin. He played piano while she sang from on top of a giant rainbow. Meanwhile, in a pre-recorded performance. Grande sang “Needy” from her recently-released album thank u, next. Watch clips of both performances below.

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Watch Kacey Musgraves perform “Rainbow” with Chris Martin at 2019 iHeartRadio Awards