Complex sentence: Upon its release as a promotional single, "Mean" debuted at number two on the Hot Digital Songs with approximately 163,000 downloads, which led to its appearance on the "Billboard" Hot 100 on the week ending October 30,2010.
Split into simpler sentences: Upon its release as a promotional single, "Mean" debuted at number two on the Hot Digital Songs with approximately 163,000 downloads. This led to its appearance on the "Billboard" Hot 100 the week of October 30,2010.