Katy Perry's father is "always proud" of her.

Asked if he was upset about the 'Roar' hitmaker's upcoming show at the sporting event in Phoenix, Arizona, he said: "Oh no, I don't have a problem.

"I'm always proud. I'm a proud father."

Katy has even shared a few details about what she plans to sing with Keith.

Speaking at his church's headquarters in Orange County, California, he told the MailOnline: "She's gonna do some good ones - she's excited."

The 'Dark Horse' hitmaker recently sparked rumours she has reunited with her on-again, off-again boyfriend John Mayer, but Keith claims he doesn't know if they are back together.

He said: "I don't know, you know more than I know."

The conservative minister, 67, previously admitted he cried at one of Katy's concerts.

He told a congregation in Santa Fe Springs, California, in 2013: "I was at a concert of Katy's where there were 20,000. I'm watching this generation and they were going at it. It almost looked like church. I stood there and wept and kept on weeping and weeping. They're loving and worshiping the wrong thing."