The Simpsons episode "Moaning Lisa" and "The Simpsons Sing the Blues" were both released what year?
The Simpsons Sing the Blues:  The album was released on December 4, 1990, and peaked at No. 3 on the "Billboard" 200. Moaning Lisa:  It originally aired on the Fox network in the United States on February 11, 1990.
1990