According to the Internet source given below, Judith Marjorie Collin is an American singer and songwriter known for her wide range of material she records (which has included folk music, show tunes, pop music, rock and roll and standards) and for her social activism.
Her greatest succes was Send in the Clowns (1975) written by Steven Sondheim her best-selling album Judith.

 

 

 

Websites:
	Judy Collins	Biography by wikipedia.org.
	Judy Collins	Performers' home page.