Complex sentence: Her debut single off the album "Ready or Not", became an international Top 40 hit, the song was certified gold in Norway, and platinum in New Zealand, United States and Canada and peaked at number 49 on the "Billboard" Hot 100.
Split into simpler sentences: Her debut single off the album, "Ready or Not", became an international Top 40 hit. The song was certified gold in Norway; platinum in New Zealand, the United States, and Canada; and peaked at number 49 on the "Billboard" Hot 100.