Looks like Katy Perry is Team Calvin all the way. She's reacted after his tweets telling his ex Taylor Swift to 'focus' on her relationship instead of trying to tear him down.
In the tweets posted yesterday, Calvin wrote: 'I know you're off tour and you need someone new to try and bury like Katy ETC but I'm not that guy, sorry. I won't allow it'
Of course, Katy and Taylor have had major beef in the past with Katy once tweeting 'Watch out for the Regina George in sheep's clothing...'
While Taylor's song Bad Blood is believed to be about Katy.
Last night, after Calvin's tweets, Katy retweeted a message she had posted in 2015 saying 'Time, the ultimate truth teller.'
Time, the ultimate truth teller.
— KATY PERRY (@katyperry) May 9, 2015
— KATY PERRY (@katyperry) July 13, 2016