MBC's Music Core is back for another week of great performances from some of your favorite K-pop stars. Great stage settings, colorful outfits, and fan chants were all seen and heard on the Feb. 21 episode.

One idol made their debut on the Feb. 21 episode. The star is Yeon Du with her single titled, "Be Your Girl."

Your nominees were Naul, 15&, and 4minute as they battled for the first place trophy. The winner was 4minute for their single titled, "Crazy." Congratulations to them.

This being said, here are the best performance recaps from the Feb. 21 episode.

Best Performance Recaps From Feb. 21

Yeon Du

Yeon Du made her solo debut on the Feb. 21 episode. Her single is titled, "Be Your Girl." She has a great voice and raps very well.

"Oh man, her voice is amazing, but she's also so good at rapping! This song is kind of all over the place, but she's doing a really good job!," wrote YouTube viewer CheesyBuckette who posted on the website Saturday.

What is your opinion regarding her solo debut?

4minute

4minute are doing a great job with promotions as they are making their fans go "Crazy" with them each week. HyunA is loving this concept as she is full of energy.

Including HyunA, each of the ladies are performing with lots of energy. Along with this, they are showing their fierceness. 4minute thanked their fans as they won another trophy on the Feb. 21 episode.

Amber

f(x)'s Amber said, "Shake That Brass" as she entertained her fans once again. Amber's solo single ranks number eight this week.

For the Feb. 21 episode, Amber's group member Luna sang Taeyeon's part. The audience erupted and screamed once she came on stage. Amber hugging Luna at the end of her performance was cute.

Nine Muses

Nine Muses are doing a good job with promotions as they continue causing a "Drama" on the music shows each week.

This week, Nine Muses ranks number 15 on the Music Core's chart.

Viewers on YouTube are loving Nine Muses' performances as they entertain the audience each week. "This is an addictive song I really hope they win they've been in this industry for years they deserve it," wrote YouTube viewer Chanmi Han who posted on the website Saturday.

Niel

TEEN TOP's Niel moved smoothly on stage as he was a "Lovekiller" on the Feb. 21 episode of Music Core.

Niel wore a black leather long coat for his performance. Loud screams and fan chants from the females was heard while he performed.

Zion.T & Crush

Zion.T & Crush sang their new single titled, "Just" on the Feb. 21 episode. Their single ranks number five on the music show's chart this week.

Zion.T and Crush sang with their smooth voices about moving on from a break up. The duo are doing a good job entertaining their fans each week.

U-KISS

U-KISS had a green handkerchief as they sang their single titled, "Playground." The guys showed their charm and sang beautifully.

U-KISS's performance was cut to less than three minutes long. While their performance was cut, the guys did a great job entertaining the audience. Loud female fan chants were heard while the guys performed.

Hong Jin Young

Hong Jin Young was elegant as she wore a long pink colored dress for her performance on Feb. 21.

Hong Jin Young sang her trot concept single titled, "Cheer Up." The song ranks number 25 on the music show's chart this week. The audience loved her performance and screamed near the end.

Soya and KK

Soya and KK showed their great collaboration as they sang their love single titled, "NPNP."

The message of the song is regarding Soya and KK figuring out what love is. Both think and finally get it in the end. The audience enjoyed their performance.

MYNAME

MYNAME sang their new single titled, "too very so MUCH" on the Feb. 21 episode. The guys performed with lots of energy and entertained the audience.

MYNAME's new concept single is hip hop; which they did a good job showing it. Gold necklaces were seen during their performance.

MYNAME are doing a good job with promotions; which viewers are loving their performances each week. "I like them!," wrote hb121206 who posted on the YouTube website Saturday.

TAHITI

TAHITI asked for your "Phone Number" as they had their performance cut to less than three minutes long. The group wore a burgundy shirt and tight black leather pants.

The group had to modify their choreography because the original version is inappropriate to be seen to the public audience.

1PUNCH

1PUNCH brought back the nineties as they sang their single titled, "Turn Me Back." Their performance was cut to less than three minutes long. The guys did a great job entertaining their audience.

Rubber Soul

Hip hop female group Rubber Soul is bringing a new sound as they sang their single titled, "Life." Mad Clown was featured and did the rap part for their opening performance.

The girls had their performance cut to less than three minutes long. The group did a good job entertaining and showcasing their great rap skills to the audience.

Jo Jung Min

Jo Jung Min sang her single titled, "Dummy Bear" on the Feb. 21 episode. She wore a nice white colored short dress for her performance. Jo Jung Min's performance was cut to less than three minutes long.

Berry Good

Love was in the air for Berry Good's performance as they sang their new single titled, "Because of You."

The ladies wore a beautiful white colored short dress. The girls are having a good time with promotions as they smiled at the camera.

Other Performances

G-Friend; "Glass Bead"

KIXS; "Beautiful"

The Nuts; "I Can't Forget About You"

A.KOR; "Always"

6 to 8; "Not Enough"