Tulisa Contostavlos confirmed her departure from the ITV show last week, with Sharon Osbourne announced as her replacement on the panel.
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Former contestant and presenter of ITV2's spin-off show The Xtra Factor Murs has said that he is "sad" to see the N-Dubz star go. He described Osbourne - who previously appeared on the judging panel between 2004 and 2007 - as "amazing".
"It's going to be a shame to see Tulisa go. People have got their opinions of Tulisa, but I got to know her really personally and she's such a lovely girl. I think she done really really well for the show," he told ITV's Daybreak.
"We all know Sharon's amazing. She's a bubbly character, she's just going to be feisty from day one til the end. She's brilliant!"
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The 'Dear Darlin'' singer also praised judges Gary Barlow and Nicole Scherzinger, who complete the panel alongside Louis Walsh.
He said: "Nicole last year was a revelation, so fresh, so new. I love Gary, he's like a mentor to me."
Murs - who is not expected to return to his Xtra Factor presenting post for this year's series - also discussed the possibility of joining the judging panel himself. However, he said that he is focused on his music career at the moment.
"People have spoken about it and tipped me to do it before. If Simon [Cowell] came to me and said, 'We want you to be a judge', I'd obviously have to sit and think about it," he admitted. "But I think it would be nice for me, for a change, to just have a year away from The X Factor!
"It's all about my music and going forward. I've got a really exciting year ahead of me."
Murs also joked: "Maybe I could squeeze on [the panel] next year if Simon lets me."