The singer parted ways with Brand after 14 months of marriage. The actor filed for divorce in 2011, citing irreconcilable differences
Perry's parents Keith and Mary Hudson are strict pastors.
"I thank God every day for having made us all the same way and I pray for anyone who fights for freedom of speech. I'm pro-gay marriage and want equality between genders. My mom thanks God every day for my divorce.
"Growing up, I wasn't allowed to listen to non-religious music. Madonna, my idol, was considered worse than the devil," she said.