It prominently features a sample from Southside Movement's 1974 track "Save the World".

The name "Caroline" contains the word "caro" (short for carreau , meaning diamonds).

The song is a reflective narrative about a failed love story, though the specific reasons for the breakup are left ambiguous. It is famous for its elaborate metaphors, particularly the central used to describe the relationship:

Some interpretations suggest "Caroline" may also be slang for cocaine (similar to "Charlie" in English), framing the love as an addiction. Production and Musical Style

While Solaar delivers his signature soft-spoken, almost-whispered rap, the backing vocals are provided by the artist Melaaz. Cultural Impact

In the chorus, Solaar plays on the four suits (hearts, diamonds, clubs, spades). He identifies himself as the "As de trèfle qui pique ton cœur" (Ace of Clubs who stings/takes your heart), where "pique" also refers to the spade suit.