Here is a list of short phrases authors have used to describe Harry Nilsson:

 

Rock music's answer to Mad Magazine

-- Tony Palermo (1973) [1]

 

The guy who did that "Coconut" song

-- Mike Redmond (1994) [2]

 

American Beatle, filthy drunk, and the great lost music genius of the 1970s

-- Sean Fennessey (2013) [3]

 

An idiosyncratic, savvy composer with a unique flair for Cloud Cuckooland-ishness

-- TV Tropes [4]