Crossword puzzle clue "you feel good when you're on one"

Early and influential stand-up comedian Mort who said, "Liberals feel unworthy of their possessions. Conservatives feel they deserve everything they've stolen" haha I feel that

You feel good when you're on one

1959 hit with the lyric "One day I feel so happy, next day I feel so sad"

Shakespeare character who says "Good night, ladies; good night, sweet ladies; good night, good night"

Ratt "Feel the heat of the rhythm. Feel the heat of my hand. ___"

Saxophone type featured on James Brown's "I Got You (I Feel Good)"

The third one usually doesn't feel so good

Pejorative nickname for one supporting a cause via unproductive feel-good measures