Complex sentence: The song spent two non consecutive weeks at number one and became the second highest selling Australian artist single in 2010 within six weeks of release, and reached 4x platinum certification in May 2011, becoming only the fourth Australian artist song to ever achieve that certification level.
Split into simpler sentences: The song spent two non consecutive weeks at number one and became the second highest selling Australian artist single in 2010 within six weeks of release. It reached 4x platinum certification in May 2011, becoming only the fourth Australian artist song to ever achieve that certification level.