Katy Perry releases new album 'Witness'

Singer Katy Perry's new album 'Witness' is out now.
The 32-year-old songstress today invited her fans to join her in a "WILD countdown" live and exclusively on YouTube as she released her 15-track LP.
In her latest outing, Katy reflects on the changes in her own life and in the world around her, delivering songs that both challenge and inspire the listeners.
The songs in the album were penned by the "Roar" singer and she has collaborated with various artistes on the same.
'Witness' includes the Platinum-certified hits such as "Chained to the Rhythm" featuring Skip Marley, "Swish Swish" featuring Nicki Minaj and the new single, "Bon Appetit" featuring Migos.

Katy and longtime collaborator Max Martin served as executive producers of 'Witness' and Martin produced many of the tracks, according to a press release.

The singer will also embark on her North American tour to promote her latest album.
The run, which kicks off on September 7, will include three New York City shows - October 2 and 6 at Madison Square Garden and October 11 at Barclays Center - plus three evenings at Staples Center in Los Angeles on November 7, 8 and 10.
Katy will be partnering with Boys & Girls Clubs of America in a variety of ways on the tour and USD one per every ticket sold will also be donated to the organisation.