Katy Perry & Kacey Musgraves: Delightful Duo at 'CMT Crossroads'!

Katy Perry belts out a tune while performing with Kacey Musgraves during CMT Crossroads at Sony Pictures Studios on Friday (April 18) in Culver City, Calif.

The 27-year-old singer showed off her new green locks onstage.

PHOTOS: Check out the latest pics of Katy Perry

After the show, Katy shared an inside joke she had with Kacey.

“Cacti must be the loneliest of all the plants in the world. Right, @KaceyMusgraves? #unhuggable,” she tweeted.

Don’t forget, CMT Crossroads: Katy Perry and Kacey Musgraves premieres on Friday, June 13 at 10pm ET/PT on CMT.

10+ pics inside…