The couple, who tied the knot on 27 July 2012, not only spent their 'honeymoon period' in different countries due to work commitments, they became parents to daughter Alaia-Mai in May.
Marking the occasion with a romantic tweet, JLS star Marvin said: "1 year ago today..1 of the happiest days of my life..I married the most incredible woman in the world..Happy Anniversary baby..I Love You x"
Saturdays singer Rochelle replied to her hubby, saying: "Can't believe how much has happened in a year. The best day ever. Love you lots. Excited for today xx"
Later on, Marvin shared a collage of photos taken at their wedding venue, Blenheim Palace in Woodstock, Oxfordshire.
In one picture, the happy couple are sipping champagne in front of the stately home's gardens. In another, they are posing by a lake, also situated in the grounds.
Marvin posted the snapshots onto Twitter, saying: "Happy Anniversary...this is where it all happened!"
Meanwhile, the couple also received anniversary wishes from their showbiz pals, including Marvin's JLS bandmates Aston Merrygold and JB Gill.
Aston tweeted: "What a day to remember and it's been a year already! My brother and sister celebrated their first year in the most amazing way by bringing lil Mai into the world!! Hope you all have a great day love to u both always! Ax"
JB added: "Happy Anniversary @MarvinHumes and @RochelleTheSats, may God continue to bless your relationship, family and marriage for many years to come! x"
Rochelle responded to Aston and JB's tweets, saying: "Thanks boys love u both millions xxxxx"
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