Complex sentence: The single was a chart hit in many countries and spent multiple weeks at number one in several countries, reaching the top for two weeks in Austria, three weeks in Ireland, three weeks in New Zealand and five weeks in Australia.
Split into simpler sentences: The single was a chart hit in many countries and spent multiple weeks at number one in several countries. For instance, the song peaked at number one for two weeks in Austria, three weeks in Ireland, three weeks in New Zealand and five weeks in Australia.