ILLIT Reveals Their Grueling Training Method For Live Singing While Dancing

HYBE girl group ILLIT recently made their comeback with “Jellyous,” an upbeat dance-pop track that has been getting plenty of positive reaction from listeners.

ILLIT | @illit_official/Instagram

As the promotions for this comeback kicked off, netizens couldn’t help but notice how well the group pulled off the live performances, delivering both powerful choreography and vocals.

ILLIT performing 'jellyous' on Music Bank 🌟 #ILLIT #아일릿 pic.twitter.com/ZtlZlOTu2r

— zack ❤︎ (@sakaiscat) July 18, 2025

While in K-Pop, it is standard for artists to nail singing and dancing simultaneously during live performances, ILLIT’s constant improvement has gained special attention. But attaining that level of vocal stability has not been an easy task for the group.

Recently, ILLIT released a behind-the-scenes vlog on their YouTube channel, showing their preparation process for this comeback. In the video, the group can be seen training to perform “Jellyous” by singing the song while running on the treadmill. All five members were in complete sync with their vocals and their steps on the treadmill!

AIN’T NO WAY THEY GOT THEM SINGING ON TREADMILLS TO PRACTICE JELLYOUS…..????? MY HARD WORKING ILLIES 🥹😕 pic.twitter.com/QsYMvTPji3

— iroha ₍^◜𖥦◝^₎⟆ (@98HOKAZONO) July 18, 2025

According to Wonhee, the group usually practices its live vocals while doing the choreography, but they chose this hardcore training method because the “Jellyous” choreography was harder.

After one round of running-while-singing, the members shockingly admitted that they found it easier than singing while doing the choreography. Regardless, they kept pushing until they were satisfied with the results.

The clip has since gone viral on online platforms, with fans praising them for their hard work.

The scariest part is they sound exactly the same like the studio version oh my god my talented girls https://t.co/bsaytJy9sk

— fira ˏˋ ✸ ˎˊ (@toyotajeruk) July 18, 2025

that’s a way to get better singing live while dancing. to train your lungs for breath support! https://t.co/Rsb715JlLZ

— rie⁷ (@missmxqn) July 18, 2025

i love watching idols/singers train their vocals like this its so cool https://t.co/8g08TfrEo3

— (lettie˚ʚ♡ɞ˚): (@strwberi_luv) July 18, 2025

Comment
byu/SapphireHeaven from discussion
inkpop

Comment
byu/SapphireHeaven from discussion
inkpop

Props to the ILLIT members for their consistent efforts and dedication toward their craft!