The comic actor has started taking orders from his pop star spouse - who he wed in India last month - and she has even started telling him to wear.
In his first TV interview since tying the knot, he told ITV show `Loose Women`: "The other day, I put a shirt on and she went, `You`re not wearing that shirt are you?` I thought, `That`s actually happening? That`s a thing off a sitcom.` That happened in my actual life. I wasn`t allowed to wear it."
Describing himself as "under the thumb", he continued: "If she says don`t wear that shirt, I don`t wear it."
Despite the star-studded guest list and glamorous location, Russell insists his nuptials were just like anybody`s else`s wedding day.
He explained: "It was just normal. It` like a normal wedding. Everyone gets all worked up about showbiz and celebrity, but other than the bit where you-re on the TV or you`re singing a song, it`s normal. It`s just a normal marriage."
The `Get Him to the Greek` star also denied he gave Katy a tiger on their wedding day, adding: "I`m a vegetarian, you don`t give people tigers, it`s stupid, it`s dangerous, and the tigers don`t like it."