A Totally Naked Chrissy Teigen Surprises John Legend on Father's Day: See the Pic!

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Chrissy Teigen definitely made sure husband John Legend's Father's Day this year was one to remember.

The 31-year-old model Instagrammed a pic of her surprise for Legend on Sunday, which involved her getting totally naked and meeting him in Boston, where he's set to play a show at the Blue Hills Bank Pavilion on Monday as part of his Darkness and Light tour.

... And there was cake, too.

WATCH: Chrissy Teigen and John Legend Share Nude Photo From Bed Before Attending Met Gala

"Successfully surprised John with a secret trip to see him in Boston :) gift level 10/10," Teigen wrote alongside a photo of her in the buff and holding a delicious-looking cake reading "Happy Father's Day."

On a more serious note, Teigen also wrote a heartfelt note about the talented singer being a great dad to to their adorable 1-year-old daughter, Luna.

"In all our time together (11ish years!!?!?) I cannot believe how much he has grown as a man and a husband," Teigen wrote. "To see him go from big goals to big ideas to big wins and the love of so many makes me so so happy. 10 years ago, I didn't think he could get better, then I got to see him as a father. I don't know how or why Luna, my family and I got so lucky in this life but I will stop questioning and just be grateful. I love you so much, John. Happy Father's Day."

Of course, Teigen also gave a sweet shout-out to her own father, sharing a picture of him walking her down the aisle on her wedding day in September 2013.

"Can't forget the first important father in my life," she wrote. "The man who never stopped working to make sure we had the best life possible. I was so proud to hold your arm on this day and so proud to call you my dad every day. Love, your boogernose goober."

WATCH: Chrissy Teigen Posts Naked Picture of John Legend Because She Can

Legend has spoken to ET before about the couple going naked, explaining that they're completely comfortable in the nude.

"We don't mind showing off our bodies -- we just feel like there's no problem being natural and nude when you're with the right photographer and it's done the right way," he said.

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