Last night's episode of "Music Core" aired its 400th episode. On this episode, numerous idols performed past as well new songs. Hosts for the night were Kim So Hyun, SHINee's Minho, and Noh Hong Chul.

The stars as well special performances last night were Girls' Generation as they sang their new single, "Mr.Mr." As for the special performances, SHINee's Minho and Kim So Hyun sang "Why Do You" which is a way back K-Pop song, Sunmi as well Ga-In did a switch of their songs, Girl's Day as well Secret performed a single from S.E.S as well Fin.K.L, B1A4 sang g.o.d, Boy's Day which are comprised of members NU'EST's Ren, BTOB's Minhyuk, VIXX's Hongbin, A-JAX's Seungjin came together on-stage. Kahi went back with her group After School, Hyolyn as well Ailee performed "Let It Go", Miss A as well SISTAR traded singles, and EXO sang a single from Super Junior; while Koyote and T-ara worked together.

Last night's episode had no winner; so enjoy the performances.

Performance Recaps From The 400th Episode of "Music Core" + Videos

EXO

EXO came out to first perform Super Junior's single, "Sorry Sorry." The members looked a bit uncomfortable performing this compared on the "Golden Disk Awards." Then the guys went to perform "Growl." Though they are done promoting, the members looks exhausted. They really do need to get some rest. Though no matter if they are tired, EXO performed great. What do you think about EXO's performance? Did they look exhausted to you?

Girls’ Generation

Girls' Generation made their comeback last night on "Music Core." This is considered their best performance because of the chosen wardrobe they wore. White business suit is a perfect wardrobe compared to their other one for "M! Countdown" and "Music Bank." The ladies performed two of their singles which were "Wait A Minute" and "Mr.Mr." The bright red lipstick is one they probably got from Sunmi; though it really looked great. Finally, Taeyeon's birthday was yesterday and she looks great by not looking 26 years old. Still looks 24 years old instead. Like always, their vocals are fantastic by each showing their perfect voices on their parts for the song. What do you think about this performance?

SHINee’s Minho and Sohyun

SHINee's Minho and Sohyun got on-stage together to perform the 1993 hit single, "Why Do You." Minho looked really good by having that retro look due to the glasses as well pants. Awesome performance as they brought back the good old days of K-Pop. What do you think about Sohyun? She did a great job?

Miss A

Miss A came out to sing "Bad Girl Good Girl" which is the first song that gave them numerous attention. Even though the performance was cut short, they did a great job. Min's new blonde hair color looks good on her. Did you miss Miss A?

CNBLUE

CNBLUE came out by singing their hit single "Can't Stop" as well one other song titled, "Tolgo." The audience are never disappointed by CNBLUE are they screamed from the beginning until the end of their performance. What do you think about their other song "Tolgo?" Like or unlike?

After School + Kahi

Kahi missed the good old days when she was part of After School. So, she worked with again last night as they performed "Let's Do It" and "Bang." With their fabulous looking wardrobe, the ladies are beautiful with their blue top and white shorts. Do you think Kahi should have stayed with After School?

SISTAR

SISTAR came out to sing "Loving U" as well Miss A's single "Hush." The ladies were missed and they really need to make a comeback soon. As for "Hush," they did not do too bad. Crowd loved it. What do you think? Did SISTAR do a great job performing "Hush?"

SECRET

SECRET performed "Now" which was a 2000 hit. The ladies did a great job and brought old school back last night. The year two thousand was the year when Korean music was just getting recognized. The idols did not travel to other countries; if they did, it was only domestic around Asia. What do you think about SECRET's performance last night?

Hyolyn and Ailee

Powerhouse duo Ailee and Hyolyn showed their great voices as they sang the OST, "Let It Go." The single is from Disney film, "Frozen" which is popular in South Korea. The dress that they wore is what Elisa from the film wears; so they wanted to resemble her. This is a great version and one that they should promote. What do you think about this version?

Girl’s Day

Girl's Day said "I Love You" which is a single from S.E.S. "I Love You" was a hit single during the year 1998. Glad to see the cute concept from the girls again. Though "Something" is one that is definitely going to remind fans even if they do a cute concept as their comeback. The sexy concept was really a great promotion from them. Truly, it was "Something."

Girl’s Day and Boy's Day

Girl's Day performed "Something" and Boy's Day which are comprised of members NU'EST's Ren, BTOB's Minhyuk, VIXX's Hongbin, A-JAX's Seungjin, came on-stage to sing Girl's Day single. Boy's Day truly entertained the audience and made them laugh. What do you think about Boy's Day?

T-ara

T-ara came back on-stage to sing "What Should I Do" as well "Roly Poly." They brought their disco song as well collaborated with Koyote. Great performance which each has the concept of dance. Finally, Tae Jin Ah sang "Honey, I Love You" in the end. What do you think about T-ara's and Koyote's collaboration?

Sunmi

Sunmi had a short performance as the "Full Moon" was out. Sunmi looked gorgeous with her short black hair as well white wardrobe. Fan chants were amazing last night even though her performance was short.

Ga-In

Ga-In also had a short performance as she sang "Truth or Dare." With her short red dress, she looked great as always.

Ga-In and Sunmi Special Performance

Sunmi and Ga-In faced off as they performed each of their song. Ga-In performed "24 Hours" which she did a great job on. She put her own version and made it great. As for Sunmi, she sang "Bloom" and felt uncomfortable. Truly, it is just not her and prefers being barefoot. Sunmi cannot sing high-pitched on the parts where Ga-In has it for "Bloom." Who do you think won? Ga-In or Sunmi?

B1A4

B1A4 performed "g.o.d" which was a hit during the year 2001. The song is a high beat song which B1A4 did a great job. Audience were entertained. Did you know this single during that year?

TVXQ

TVXQ put you in a "Spellbound" last night as they once again captivated the audience. Each week, TVXQ are setting the bar high. TVXQ are getting comfortable performing on-stage with women because they usually do not have any. So, it is great to see TVXQ do this. The guys always look great wearing suits; which you saw on their previous single, "Something." Do you love the female back-up dancers that TVXQ has on-stage each week?

Photo Credit: OSEN