Music News Calvin Harris to collaborate with Katy Perry on his new album 05/10/2017 Calvin Harris will collaborate with Katy Perry on his star-studded new album. Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Katy Perry Ariana Grande Taylor Swift John Legend Calvin Harris
