Tag: CIELOGROOVE
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![[NEWS] OMEGA X’s YECHAN and CLASS:Y’s HYUNGSEO Collaborate For ‘들었다놨다 (Up and Down’](https://hallyutones.com/wp-content/uploads/2025/08/yechan-hyungseo_up-and-down_cover.jpeg?w=1024)
[NEWS] OMEGA X’s YECHAN and CLASS:Y’s HYUNGSEO Collaborate For ‘들었다놨다 (Up and Down’
Hello and welcome back to HallyuTones, always focused on sound, stage and substance. K-Pop duet collaborations are always a wonderful experience, especially when these involve members of different groups coming together. To see fandoms come together to support their favourite artists, and to hear the unique blend of their vocals is always a delight. Today…
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