The Saturdays star wed the JLS singer at Blenheim Palace in Oxford on Friday (July 27) in front of family, friends and celebrity guests.
Olly Murs, Harry Styles and the pair's respective bandmates, such as Mollie King and Aston Merrygold, were among those who attended the ceremony.
Tulisa Contostavlos, Wretch 32 and Alexandra Burke also helped the popstars celebrate their nuptials.
"Yesterday was literally the best day of my whole life. I'm so happy to have shared it with every1 I love my friends and family are priceless (sic)," Wiseman later tweeted.
"Me and Marvin feel so blessed I felt like a princess all day. You can now call me Mrs Humes no longer a Wiseman."
The newlyweds were rumoured to have postponed their honeymoon due to their busy work schedules, but were spotted at the airport by the Sunday Mirror this morning.