IDK is a face-to-face expression that is used in everyday conversation to express doubt, explain something unknown, or answer a question. It is most often used to address a situation like a conversation with a friend. It can also be used as a way to express interest in something or show care.
I don’t know
The song "I Don't Know what to Do" is a ballad about a split. Its chorus features angelic singing and ends with an emotive finale. The chorus is about heartbreak after a breakup. Although it might sound upbeat it is actually a sad song about losing someone you love.
The song "Don't Know What to Do" is by the South Korean girl group BLACKPINK. Teddy Park produced the track and Brian Lee wrote it. It was the second track from the Kill This Love mini-album. It peaked in number 38 on South Korean Gaon Digital Charts and reached 49 on Japan Hot 100.
I don't care about it
The second single from the album I Don't Care About It is the eponymous one. This single was created in collaboration with Justin Bieber and Ed Sheeran. The protagonist of the song is an introverted man who has a hard time socializing. Lyrics of the song speak to his need to get rid of social anxiety and find help in his lover.
