The reference likely refers to the April 1997 issue of Seventeen magazine , as it was published monthly and April is the fourth month. Key Content Highlights
If you are looking for specific celebrities who appeared in Seventeen during that same year: Seventeen – No 276 1997
The magazine included its "Best and Worst of 1997" list, which notably (and controversially in retrospect) labeled the as the "worst import" and critiqued Fiona Apple . It praised Lilith Fair for its message of "Girl Power". The reference likely refers to the April 1997