Katy Perry has treated her mother to a facelift

The 'California Gurls' singer splashed out on a skin-tightening operation for her mother Mary Hudson, and her Christian pastor father Keith Hudson is so pleased with the results he has been bragging about how "amazing" his spouse looks.

According to The Sun newspaper, the reverend told his congregation at The Way Family Church in Temecula, California: "My daughter, little Katy Perry, bought my wife a facelift. Hallelujah! My Lord, does she look good. It is amazing what they can do. They took 25 years off her. I am serious - it's amazing.

"I don't know how I am going to handle this. I mean, she doesn't look like her mother no more, she looks like Katy Perry's sister. It's going to be difficult because they're going to say, 'Who's this old man with Katy Perry and her sister'' "

Katy treated her mother to the operation in the run up to her own wedding to British funnyman Russell Brand in September.

Before they started dating, the comic was known for his womanising ways but Keith is hopeful he will convert to Christianity and calm down once and for all.

He said: "That Russell Brand - he's a prayer challenge. He is searching for God and that boy is going to get saved. If he's going to hang around us, he's going to fall in! He's hungry for God."

Although they're just weeks away from their nuptials, Russell and Katy can't agree on where they will settle down when they become husband and wife.

She said in an interview with UK station Capital FM Capital FM radio: "We won't be moving to London anytime soon. I'm sure that Russell wants to keep his roots, he's English and likes being that dapper man so he's going to want to keep something here. But right now I'm clinging to California.

"It's because I'm a serotonin girl. That's why I live there. Like my serotonin level would fluctuate if the sun doesn't come out, my personality doesn't come out."