Model Chrissy decided to celebrate early ahead of her 28th birthday on Saturday (30 November), with a Nintendo-themed party in West Hollywood last night (26 November).
'Ordinary People' hitmaker John embraced the lead character of Mario to absolute perfection, wearing the iconic red cap, blue dungarees, red jumper and even a fake belly!
John, 34, also adorned his face with Mario's trademark thick eyebrows and moustache.
Meanwhile, birthday girl Chrissy decided to come as Princess Peach, and sported a pink satin ball gown complete with a blonde wig.
The couple took a break from Chrissy's celebrations to pose for a photo, and after two months of marriage, they look as loved-up as ever.
Chrissy, who affectionately put her arms around John, captioned the snap: "AHERE WE GO #nintendobirthday."
John and Chrissy tied the knot in a fairytale wedding at Villa Pizzo in Lake Como, Italy, on 14 September. The intimate, yet star-studded ceremony was attended by the likes of Kanye West and Stevie Wonder.
After enjoying a honeymoon at Italian fishing village, Portofino, John premiered his music video for 'All of Me', which features Chrissy and includes footage from their wedding day.
Watch John's music video for 'All of Me' below: