Hidden Singer (Season 4) recorded its highest viewer ratings per minute thus far with its October 3 episode featuring the "Queen of K-Pop," BoA!

When BoA sang her hit song "No.1" with her four "vocal doppelgangers" (below), the ratings boosted up to 7.7%. The overall viewership rating for this episode was 6.2%. These ratings are very impressive considering the fact that Hidden Singer is a cable channel show!

After hearing her vocal doppelgangers' stories, BoA relayed her thanks. "I think I received many gifts today. I will remember this day for a long time."

Even though she was nervous about possibly getting eliminated, BoA ended up as the ultimate winner with 70 votes in the final round as she sang her recent track, "Only One."

Kudos to you, BoA!

Meet the members of new idol group Astro in their short web series To Be Continued: