Donning a fringed black dress, the 33-year-old performed a stripped down version of the track, singing along with her acoustic guitar.
Lambert was nominated for six ACM awards this year, tying her with singer Maren Morris. The blonde beauty's new boyfriend Anderson East was also in attendance to cheer her on.
Do you think ex Blake Shelton tuned in for her song? Let us know in the comments below!
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