Fans Adore LE SSERAFIM Kim Chaewon & ILLIT Wonhee’s ‘SPAGHETTI’ Challenge Collaboration
Following LE SSERAFIM’s comeback with their single ‘SPAGHETTI (feat. J-Hope of BTS)’, a new ‘sisterly’ challenge clip has reignited buzz online. On November 25, the group’s official channel uploaded a short ‘SPAGHETTI’ dance challenge featuring leader Kim Chaewon and ILLIT’s Wonhee. The video immediately gained traction across social platforms, with many fans calling it one of the most rewatchable idol challenge collaborations in recent weeks.
‘SPAGHETTI’ is part of LE SSERAFIM’s latest single project released in October, combining an upbeat groove with an addictive hook and a featured verse from BTS’s J-Hope. Soon after its release, the track appeared on multiple streaming charts and became a frequent topic on social media. The new challenge clip is a continuation of this comeback campaign, distilling the song’s playful rhythm into a concise highlight choreography tailored for Reels, Shorts, and challenge content. For fans who mainly know LE SSERAFIM through full-scale music show stages, these short-form videos offer a closer and more casual angle on the group.
The ‘SPAGHETTI’ challenge clip is framed tightly to highlight the duo’s facial expressions and precise movements. Kim Chaewon holds one side, leading the routine with her trademark rhythmic control and composed gaze, while Wonhee matches her from the other side, adding a bright, junior-like energy through her natural smile and light footwork. During the chorus, their hand and upper-body movements are almost perfectly in sync, prompting comments from viewers that they can ‘feel the chemistry just from their silhouettes’. Others noted that the rhythm-focused choreography neatly showcases both the similarities and differences in their basic sense of groove.
On Korean community site theqoo, the related post quickly made its way to the trending section, with comments overwhelmingly positive. Users wrote things like ‘they really look like real sisters’, ‘Chaewon suddenly feels so much like an unnie’, and ‘Wonhee has improved so much—her dancing looks stable now’. Others added, ‘please let this duo collab again, any song is fine’. Even netizens who are usually more critical focused mostly on their chemistry and growth rather than comparing the video to other challenges, suggesting that the clip successfully captured a light, enjoyable mood rather than inviting competitive discourse.
On DCInside’s girl idol boards, users shared the clip under titles like ‘SPAGHETTI challenge with Wonhee’, with replies calling the pair ‘too cute’ and saying that the combination ‘works surprisingly well’. On Taiwan’s PTT KoreaStar board, users reposted Korean reactions and compiled representative comments such as ‘Wonhee dances really well and is so cute—highly recommend this pairing’, ‘my two favorites side by side’, and ‘this is the perfect older-sister-and-younger-sister combo’. Across Korean and Taiwanese communities, the focus is less on technical breakdowns and more on the atmosphere and subtle narrative that emerges when the two stand next to each other.
Although LE SSERAFIM and ILLIT belong to different HYBE subsidiaries, fans broadly see them as part of the same ‘sister group’ family. Kim Chaewon is known for her solid stage control and clear vocals, with a longer track record of releases, while Wonhee is one of the most prominent rookies in recent years, quickly building a following through survival shows and post-debut promotions. This collaboration naturally creates a ‘senior guiding junior’ dynamic on screen, while also showing that HYBE’s different teams don’t just pass each other by at award shows—they can come together in low-pressure collaborations that generate new fan memories. For both the company and the groups, it’s a relatively low-cost move that effectively amplifies buzz.
The ‘SPAGHETTI’ challenge highlights how K-pop comebacks are no longer defined solely by music show stages or physical album sales. Cross-group collaborations like this one between Kim Chaewon and Wonhee pack the song’s groove, the idols’ interpersonal dynamic, and the fandom’s reposting power into just a few seconds of video. For LE SSERAFIM, the clip adds another memorable visual layer to ‘SPAGHETTI’. For ILLIT and Wonhee, it provides a casual yet impactful window for fans to notice her growth and charm outside of official stages. And for followers of HYBE’s girl-group lineup, this kind of challenge might only last a few seconds—but the impression it leaves often outlives the runtime of the video itself.
【KStarLoud Analysis】From an operational standpoint, pairing a senior group’s title track with a junior member guesting in the challenge is a tightly targeted content play. For LE SSERAFIM, the clip channels both the song’s existing buzz and fresh traffic from ILLIT’s fandom; for ILLIT, sharing the frame with leader Kim Chaewon reinforces the narrative that Wonhee is not only popular but also recognized by a well-established senior. Just as importantly, the challenge carries no heavy storyline—only natural chemistry and warm ‘sister’ energy—so on relatively strict forums like theqoo or PTT, it’s less likely to be weaponized into fanwars. In other words, this ‘SPAGHETTI’ challenge simultaneously connects the fandom pipelines within HYBE and serves as a template for using short-form video to build brand relationships: the goal isn’t just raw view counts, but to deliberately create a few recurring cross-group pairings that instantly evoke a visual memory. Over time, these small, low-cost collaborations can become some of the company’s most stable—and hardest to replicate—content assets.