Clarinet-percussion duos, music for one clarinetist and one percussionist, are a relatively new addition to the world of chamber music - the first work for this instrumentation was written in 1958. Throughout the second half of the 20th century, however, the genre became increasingly more popular, boasting at least 260 works before the year 1990, and dozens more between 1990 and 2000. After 2000, the genre managed to become an even larger branch of chamber music by adding at least 137 new works. Additionally, many performers dedicated solely to the grouping began to arise even before the end of 2015.This study explores the many facets of the clarinet-percussion duo that are making it a successful genre in the 21st century. It initially briefly examines the history of the clarinet-percussion duo prior to the year 2000 to provide the reader with essential background on the genre. Second, it includes a detailed survey of all clarinet-percussion duos the author was able to locate written since the year 2000, examining how the genre has grown over time in terms of compositional style and techniques, instrumentation, and national origin of the composers of the duos. Third is an overview of the growing number of clarinet-percussion performing duos and their effect on the genre in terms of commissioning works for the grouping and generating greater public exposure to the genre. The final section of the study is a set of discussions of five specific works from the genre, each detailing how the work is unique among others yet remains a key component of the clarinet-percussion oeuvre.