Speaking about Katy, Russell admitted: "I still love her as a human being, but, sometimes when you're in a relationship, I suppose it doesn't work out.
"That doesn't mean I regret it or anything. I was very happy to be married with her. She's such a beautiful human being and I just have only love and positivity for her…"
As the audience cheered, Russell continued: "That is still a person I still consider to be beautiful and I have nothing but positivity for her."
He went on to claim that things with Perry had not turned out how he had expected, adding: "You can’t absolutely make everything the way you want it to be in life.
"Sometimes things are just different and then you do just move with that and try and remain in contact with what is beautiful about yourself and each other … with any situation."
Brand appeared on Ellen alongside UK YouTube sensations Sophia Grace Brownlee and Rosie McClelland, who shot to fame after posting a video of themselves singing Nicki Minaj's Super Bass online.
While the funnyman claims to still love Katy, the Part Of Me singer is said to have spent a cool $1million refurbishing the home she once shared with Brand, with sources stating she's "fed up of having memories of Russell everywhere."