whats that one kpop song called emoticon by a girl group

I'm sorry, but there is no known k-pop song called "Emoticon" by a girl group. It's possible that you might be referring to a different song or a lesser-known song.

its a lesser known but its about a girl and her crush in the music video and the lyric says "emoticon" in it and also "heyyy heyyyyy" then it has a rap

I apologize for the confusion, but I still couldn't find any information about a k-pop song with those specific lyrics and details. It's possible that the song you're referring to is from a relatively unknown or indie group, which might make it more difficult to find. If you have any additional details or can provide more context, I could try to assist you further in finding the song.

the rap is in korean and when they about to raap they put there hand to their faces and say "hey" then says stuff in korean then says "heyyyy" then rap in korean and it takes place at a school

I'm sorry, but I still couldn't find the specific song you're referring to. It's possible that the song you're describing is from a very obscure or underrated group, which can make it challenging to find information about it. If you have any other details or can provide additional context, I'll do my best to assist you further.

and the group is from persona entertainment

I apologize, but I couldn't find any information about a girl group called "Persona Entertainment" in the K-pop industry. It's possible that you may have the group name or details slightly mistaken. If you can provide any other information or context, I'll try my best to help you find the song you're looking for.

EMOTiCON (Korean: 이모티콘; Japanese: エモティコン) is an Up-Coming 9-members South Korean Girl Group under PERSONA Entertainment. They're going to debut on April 17, 2023 with their first mini album The Cognitive Function of Emotion.

Contents
1 History
1.1 Pre-Debut:
1.2 Debut:
1.3 2023-Present:
2 Members
3 Sub-Units
4 Discography
4.1 Digital Single
4.2 Mini Albums
History
Pre-Debut:
On December 1, 2022, PERSONA Entertainment announced that they're going to debut a new girl group early on 2023. The group would be going by the name EMOTiCON and would be presenting a new side on girl group concepts from the agency. The news came as a shock on how quickly the agency is debuting another group since SECRET V debuted 1 year and a half prior to this announcement.

The company released a statement that EMOTiCON's members had been training together for more than 2 years together and have been advanced to the point of being ready to debut. One of the members of the group Youchae was stated on the article to have been chosen the leader of the team since the early stage of practices as a team, she helped the girls a lot and showed great potential that made the team's debut come sooner than ever. The group would have emoticon symbols to identify them throughout their up-and-coming career and they would bring bubbly-pop and funky-pop concepts.

On December 7, 2022, three emoticons were revealed on their official twitter SNS: (^.^), o_Ô and ( >.< ). On December 23, 2022, two more emoticons: (^O^) and ¯\_(ツ)_/¯.

On January 10, 2022, the first member of EMOTiCON, Jinora was revealed with her representative color and emoticon across different SNS accounts, followed by Youchae on January 11, Rachel on January 12, Mirin on January 13, Yookyul on January 14, Seoi on January 15, Yoonsu on January 16, Seungram on January 17 and Shiona on January 18.

Debut:
On February 1, 2023, the debut trailer "React with your EMOTiCON" was uploaded on the group's official YouTube channel. The trailer showcased the sound of EMOTiCON as a group, the first look at the members and that the group would be debuting on April of 2023.

On February 19, 2023, the vocal line, Youchae, Rachel, Seoi and Seungram released a cover of 'Nobody Love by Tori Kelly' under the name SRYS on EMOTiCON's official YouTube channel to showcase the girl's vocals, the company declared is a vocal sub-unit on the video's description.

On March 20, 2023, PERSONA Entertainment revealed that EMOTiCON would be making their big debut on April 17, 2023 with their first mini album "The Cognitive Function of Emotion".

2023-Present:
On October 2, 2023, PERSONA Entertainment announced that EMOTiCON would be releasing a special Halloween single "BOO!" on October 20, 2023.

Thank you for providing the information about EMOTiCON, the upcoming girl group under PERSONA Entertainment. Based on the information you provided, it seems that the song "Emoticon" you mentioned is from their first mini album titled "The Cognitive Function of Emotion," which is set to be released on April 17, 2023. It's likely that the song will be included on this album. Unfortunately, as of now, there might not be much known about the song itself since the group has not officially debuted yet.