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 commonly used to describe a situation, such a conversation with friends. You can also use IDK to indicate lack of interest in or care about an activity or event.
I don't know
The ballad I Don't know What to Do is about a broken heart. Its chorus features angelic singing and ends with an emotive finale. The chorus is about the heartbreak that comes with a breakup. Although it might sound upbeat it is actually a sad song about losing someone you love.
BLACKPINK is the South Korean girl band that sang "Don't know What to Do." Teddy Park produced the song and Brian Lee wrote it. It was the second track from the Kill This Love mini-album. It peaked at number 38 on the South Korean Gaon Digital Chart and reached 49 on the Japan Hot 100.
I don’t care about it
The eponymous single, the second single from the album "I Don't Care About it", is the first. This song was a collaboration between Ed Sheeran & Justin Bieber. The song's lead character is an introverted man who has trouble socializing. The song's lyrics are about the man's need to get relief from social anxiety. He finds it in his lover.
