Katy Perry has revealed the sprawling tracklist of 4th LP, Witness (due June 9). All the singles (“Chained To The Rhythm,” “Bon Appetit” and “Swish Swish”) are present and accounted for as well as the widely teased title track.

When you’re Katy Perry, wewe don’t do anything halfway.

ABC announced at its Upfront presentation on Tuesday that Perry will be one of the new judges on "American Idol" when it returns to TV this fall at its new network.

Katy Perry has officially announced her fourth studio album. Witness will be released June 9 on Capitol Records.

May 2017 issue.