On November 28, 2025, the song "我想和你一起官宣（一起长大的约定）" was released by 宋孟君, 李哈哈. The duration of This song is about two minutes long, specifically at 2:02. This song does not appear to have any foul language. 我想和你一起官宣（一起长大的约定）'s duration is considered a little bit shorter than the average duration of a typical track.