The JLS star uploaded a picture to Instagram on Monday afternoon (9 September) showing the pair together, and it appears he was impressed by the 21-year-old 'Come & Get It' singer.
Marvin wrote: "Just interviewed the lovely @SelenaGomez for daybreak great girl! For those of you asking she was amazing! You'll be able to see it on @Daybreak real soon! X."
Aside from chatting all things music, we wonder if any baby talk was on the cards? After all, Marvin and his Saturdays star wife Rochelle have just become parents to daughter Alaia-Mai, and Selena's mum Mandy just gave birth to a little girl called Gracie.
Selena, who was spotted out and about in an all-black outfit earlier in the day, has been in the UK promoting new album Stars Dance and performing two dates over the weekend at the Hammersmith Apollo in London.
The first single from the album, 'Come & Get It', has been a huge success, reaching number eight in the UK charts earlier this year. The accompanying video won the MTV Video Music Award 2013 for 'Best Pop Video' last month.
Marvin, meanwhile, seems to be loving his job as guest interviewer on Daybreak. Aside from that, he's also still working with JLS and working at Capital FM, where he is the Voice of the Capital Weekend.
This week, however, he will also be the Voice of Every Single Night Of The Week, as he tweeted: "Something different 4me this week! I'm taking over evenings every night @CapitalOfficial Hope you're gonna join me live from 7 every night!"
Watch Selena's music video for 'Come & Get It' below:
JLS' best moments in pictures:
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