AtHeart's '내 마음 한 조각' MV gets world premiere at KCON LA 2026

AtHeart's music video for 내 마음 한 조각 had its global premiere at KCON LA 2026 in Los Angeles, which ran 14–16.

The track pulls lyrics from 청구영언, a Joseon-era anthology of Korean sijo poetry compiled roughly 300 years ago. Seohyeon (서현), Bom (봄), and Nahyeon (나현) sing the song. The National Hangul Museum—director Im Seong-hwan (임성환)—partnered with the Sejong City Culture and Tourism Foundation, led by representative director Park Yeong-guk (박영국).

At the museum's KCON booth, fans picked up limited-edition AtHeart photo cards and special folding fans printed with sijo verses in five themes: love, longing, peace, gratitude, and enlightenment. A replica of 청구영언 sat on display. Professional calligraphers wrote visitors' names in Korean handwriting on postcards three times daily.

Kim Hee-soo, Exhibition Operations Director at the National Hangul Museum, said the event let global fans watch "old lyrics from the precious Korean cultural heritage 청구영언 meet today's K-POP and come alive as new cultural content."

A 300-year-old poetry collection feeding a 5th-gen girl group comeback—nobody saw that coming.