Singer Park Seojin aims for the king of kings with a performance never seen before on 'Immortal Songs'.

KBS2's 'Immortal Songs', which will air on the 18th, is staged as part 1 of 'Immortal Songs-2026 king of kings', the biggest event of the first half of the year.

A total of 10 teams, including Lyn X JoJjaeje, Min Woo-hyuk X Jo Hyung-gyun X Yuria, K.WILL, Kim Dong-joon X Youngtak, B1A4, Park Seojin, Forestella, Hwang Min-ho X Lee Soo-yeon, Liberante, and NEXZ (Nexz), will appear in the king of kings to fiercely compete without concession for the title of "king of kings."

Park Seojin revealed why she must take the king of kings trophy, but what actually drew attention was her sudden weight gain of 11kg due to yo-yo effect.

Seojin, who attracted attention with slightly chubby cheeks, said, "I was dieting hard, then I fell into cheating. I gained 11kg in five months."

Having confessed to a "visual off-season," Park Seojin soon said, "A company director promised to give me a procedure and recovery leave if I win the king of kings," adding, "I must win the king of kings trophy," showing her strong determination.

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