MBC's Music Core is back and featured great performances from some of your favorite K-pop stars. For the Aug. 1 episode, Music Core aired the pre-recorded Ulsan Summer festival special. The Ulsan Summer festival was on July 27.

Since the concert was pre-recorded, no winner was announced. The stars who made their comeback were BEAST with "YeY" and Yu Seung Woo with "You're Beautiful."

This being said, enjoy the performances that were seen during the festival.

Performances From The Ulsan Summer Festival

Comeback: BEAST; "YeY"

Comeback: Yu Seung Woo; "You're Beautiful"

Tae Jin Ah; "JINJINJARA"

INFINITE; "Bad"

SISTAR; "Shake It"

KARA's Goo Hara Featuring Youngji; "How About Me?"

Nine Muses; "Hurt Locker"

Z.Hera Featuring Nine Muses' Euaerin; "XOX"

A Pink; "Remember"

SONAMOO; "Cushion"

G-Friend; "Me Gustas Tu"

POTEN; "Go Easy"

NC.A; "Vanilla Shake"

Lee Ki Chan; "Beautiful Tonight"

N*White; "Paradise"

WANNA.B; "Attention"

Girls' Generation; "Party"