PRISTIN's Siyeon will be joining ASTRO's Cha Eun Woo on MBC's 'Show! Music Core'.

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Pledis Entertainment revealed, "Siyeon will be working alongside Cha Eun Woo as an MC." She'll be joining the show following the leave of Kim Sae Ron and Lee Soo Min, whose last show is airing on April 15. Siyeon's first episode of 'Show! Music Core' will be airing on the 22nd.

In other news, 'Show! Music Core' will be re-forming its ranking system after a year and 4 months.