About YongSeo
YongSeo (also called the 'Goguma Couple') is the fan pairing between CNBLUE's Jung Yonghwa and Girls' Generation's Seohyun, born from their participation as a virtual couple on MBC's variety show We Got Married, which aired from 2010 into 2011. The nickname 'Goguma Couple' (sweet potato couple) originated from an early episode where Seohyun brought sweet potatoes as a gift, and Yonghwa joked about her healthy food preferences. The endearing nickname stuck and became inseparable from the ship's identity. The two bonded visibly over their shared love of music — Yonghwa as the leader of rock band CNBLUE and Seohyun as a vocalist in the nation's top girl group. They bonded over knitting scarves (Seohyun for Yonghwa, and Yonghwa in return after losing hers), wrote and performed music together on the show, and took wedding-concept photos, all of which fans treasured. Even after the WGM arc concluded, the YongSeo fanbase remained active and devoted.
YongSeo is one of the most iconic We Got Married pairings in K-pop history, with a devoted fanbase that has remained active for over a decade. The ship is widely credited with popularizing the 'Goguma' couple concept in K-pop fan culture. Fans are careful to celebrate the chemistry they showed on the show rather than speculating about their private lives.
Fun facts
- ✦ 'Goguma' means sweet potato in Korean — Seohyun's healthy snack gift in episode one became the couple's permanent nickname.
- ✦ Seohyun knitted a scarf for Yonghwa with their initials woven in; Yonghwa later lost it in Japan and knitted his own scarf for her as a gesture of apology. The exchange is one of WGM's most often-recalled moments.
- ✦ They performed and recorded music together during their WGM run, leaning into their shared musical backgrounds.
- ✦ In a September 2023 radio appearance, Yonghwa was asked whether he keeps in contact with Seohyun. He said he cannot reach out personally for various reasons but that he is always cheering her on — a response fans found touching in its own way.
Moments
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2023-09
Yonghwa's 2023 radio comment about Seohyun
On SBS Power FM's 'Kim Young Chul's Power FM' in September 2023, Yonghwa was asked if he reaches out to Seohyun. He said he cannot contact her personally for various reasons but that he is always cheering her on. Fans found the moment bittersweet, a sign that both artists have moved on while still carrying warmth for the WGM chapter.
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2011-03
Scarf exchange
Seohyun knitted a scarf for Yonghwa with their initials woven in and gave it to him near the end of their WGM run. Yonghwa later lost the scarf in Japan and, feeling guilty, knitted one for her in return. Fans cite the exchange as one of WGM's most heartfelt couple moments.
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2010-02
We Got Married premiere — Goguma origin
Yonghwa and Seohyun first appeared as a virtual couple on WGM on February 27, 2010. Seohyun's gift of sweet potatoes in an early episode — and Yonghwa's teasing about her healthy food preferences — led to the 'Goguma Couple' nickname that would define the ship for years.
Ship Couples ranking by year
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2020
#12
176010 votes
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2021
#10
21859 votes
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2022
#77
358 votes
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2023
#12
35555 votes
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2024
#23
6794 votes
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2025
#28
1780 votes
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2026
#28
694 votes
Best finish: #10
The pairing
Fan gallery
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