Complex sentence: In 1990, a thirteen-year-old Shakira signed a recording contract with Sony Music and released her debut studio album "Magia" in 1991, which largely consisted of tracks she had written since she was eight years old.
Split into simpler sentences: In 1990, a thirteen-year-old Shakira signed a recording contract with Sony Music. Her debut studio album "Magia" was released in 1991, and largely consisted of tracks she had written since she was eight years old.