Last year, it was confirmed Rita had replaced former coach Kylie Minogue on this year's series of The Voice, and after seeing her in action, Emma and Marvin think she has settled in fabulously.
Speaking to Reveal at the show's 2015 launch yesterday, Emma gushed: "I love her!"
She continued: "[Rita] is so cheeky, but she's also so lovely and endearing, she's great. She's taken to [being coach] so brilliantly."
Marvin then added he thinks Rita brings something different to the show because of how current she is at the moment.
"She is so fresh right now," the former JLS star explained. "She's just featured on Band Aid, she's just had a number one record, she's in the Fifty Shades of Grey movie, she's everywhere.
"It's great to have someone that's doing it right now, on board."
It isn't the first time Marvin has sung the 'RIP' singer's praises, as last month he exclusively told us it feels like "Rita has been in the chair for years". But, would he pick her as his coach if he were to audition for the show?
"If I'm honest, right now, this year, yeah I'd pick Rita," Marvin revealed. "She is probably the hungriest as she's new. She wants to show the others she can do it."
When asked who he thinks his wife Rochelle would pick, the 29-year-old said: "She loves Tom. But then, she does love Will too. Hopefully though, she'd go with me!"
His co-host Emma then claimed her hubbie, McBusted's Matt Willis, would go with will.i.am hands down.
"Whenever we watch [the show], [Matt] is like 'he's amazing, when can I meet him?' and I'm like erm... you're not," she joked.
Meanwhile, we also caught up with new coach Rita - who revealed she wasn't always so sure about joining The Voice.
The star admitted she didn't know if she wanted to take on the pressure and responsibility of mentoring new talent, revealing she had to turn to Will for reassurance.
Asked what finally made her say yes, Rita told us: "I finally found my balls. I said to myself, if I can find it in me to help someone then I want that, I want to do that because somebody did that for me... I'm happy I made this choice."
And, it seems her fellow coaches are just as pleased to have her on board.
Sir Tom Jones said he thought Rita "fits the bill perfectly", while Ricky Wilson claimed he liked her competitiveness.
We can't wait to see her in action!
This weekend, The Voice UK 2015 will return to our screens on Saturday night (10 January).
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Watch the trailer for the new series of The Voice UK here: