Martika - 1988 - More Than You Know "More Than You Know" was the first single released from Martika's eponymous debut album. "More Than You Know" debuted on the Billboard Hot 100 on the chart dated December 24, 1988, and peaked at #18. The single was re-released in Europe and Australasia in January 1990, and reached the top 40 in the UK (#15), Ireland, and Australia. (wikipedia.org)