Kacey and Katy sit down and Urban and Idol together again?

FOX's Michelle Pollino reports in this 'FOX Country':

I'm Michelle Pollino.

Kacey Musgraves joined Katy Perry during a livestream that Perry hosted celebrating the release of her latest 'Witness.' Musgraves guitarist David Francisco taught the pop star how to play Musgraves 2013 hit song "Follow Your Arrow."

Three years ago Perry and Musgraves joined forces on CMT Crossroads and the two covered this song as well as other songs in both singers catalog, according to The Boot.

Musgraves originally pitched this song to Perry, but the pop star turned it down to Musgraves benefit as it won Musgraves a CMA Awards 'Song of the Year' trophy.

And could Keith Urban be the next to sign on the reboot of 'American Idol' on ABC? Perry is already on board as a judge and the country star who recently picked up four CMT Award said he's open to returning.

That's FOX Country on FOX News.

Follow Michelle Pollino on Twitter: @MichellPollino