Artist BoA heaped praise on the latest episode of MBC's 'Infinity Challenge', which broke variety ground by attempting the first musical in a variety show for its 8th anniversary.

"Ah...really...Muhan Company...amazing idea," she posted to her Twitter earlier today. "Must've been hard work singing.. thanks to you, everyone in South Korea can laugh and be happy. The 'Les Miserables' part was really touching!"

Playing off a skit that involved all of the cast members being employed in a fictional company, the latest 'Infinity Challenge' featured the members trying to avoid being laid off, with some song-and-dance numbers along the way.

Check out some of their songs below!

<Shinhwa - "Wild Eyes">



<IU and Seulong - "Nagging">



<Les Miserables OST - "One Day More">



<Kim Kwang Suk - "About Thirty">