MBC's Music Core is back and featured a great line up of performances from some of your favorite K-pop stars.

The stars who made their comeback were Melody Day as they said "Speed Up," Girls' Generation member Taeyeon with "I," Park Bo Ram said "Sorry," and Oh My Girl with "Closer."

The October 17 was pre-recorded, so no winner was announced.

This being said, enjoy the performances that were seen as the stars showcased their amazing vocals and amazing choreography for the audience.

Performances From The Oct. 17 Episode

Bro; "A Sad Man"

6 to 8; "She's Like The Wind"

BIGFLO; "Obliviate"

Melody Day; "Speed Up"

Oh My Girl; "Closer"

Sunny Days; "Blah Blah"

Lovelyz; "Ah-Choo"

Park Bo Ram; "Sorry"

Heart B; "Beautiful"

Berry Good; "My First Love"

UP10TION; "So Dangerous"

SEVENTEEN; "Mansae"

CNBLUE; "Cinderella"

GOT7; "If You Do"

Ailee; "Mind Your Own Business"

Red Velvet; "Dumb Dumb"

Taeyeon Featuring Kanto; "I"