IDK is a common expression in face-to–face language that can be used to express uncertainty, describe what is unknown, or answer questions. 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 ballad "I don't know what to do" is about a breaking up. Its chorus features angelic singing and ends with an emotive finale. The chorus is about the heartbreak of a breakup. Although it might sound upbeat it is actually a sad song about losing someone you love.
BLACKPINK, a South Korean girl group, has the song "Don’t Know What To Do". The song was written by Brian Lee and produced by Teddy Park. It was released in the second song of Kill This Love's minialbum. It peaked at number 38 for the South Korean Gaon Digital Chart. It also reached 49 for the Japan Hot 100.
It doesn't matter to me
The eponymous single is the second from the album, I Don't care About It. This song is a collaboration between Ed Sheeran, Justin Bieber. The song's protagonist, an introverted man who finds it difficult to make friends, is the protagonist. The lyrics of the song are about his need to find relief from his social anxiety, which he finds in his lover.
