Whatever programming guide or marketing strategy used by SiriusXM is proving to be quite effective. Last year, the satellite radio service added more subscribers than any U.S. on-demand service to date.

The company announced Wednesday it added 2 million net subscriber additions and finished the year with 23.9 million subscribers. In addition, the company said it expected to meet or exceed all of its 2012 financial guidance.

Props to Billboard & AlLindstrom