Complex sentence: The self-titled debut album also entered the charts at number 1, Bardot breaking records for becoming the "first Australian act to debut at the number 1 position with both its debut single and debut album".
Split into simpler sentences: The self-titled debut album also entered the charts at number 1. Bardot set a new sales record by becoming the "first Australian act to debut at the number 1 position with both its debut single and debut album".