"Runnin' Blue" is a song written by guitarist Robby Krieger and performed by The Doors. It was the A-side backed with "Do It" and was released in November 1969. It was the fourth single from The Doors' album The Soft Parade. The song peaked at No. 64 on Billboard magazine's Pop Singles chart.
It is also notable for Jim Morrison's introduction, a tribute to the then recently deceased Otis Redding:
Poor Otis, dead and gone Left me here to sing his song Pretty little girl with the red dress on Poor Otis, dead and gone
The lyrics and melody includes an a cappella introduction taken from a Lead Belly track entitled Po' Howard (or Poor Howard on some compilations) where Morrison replaced the name 'Howard' with 'Otis'. Sometimes this introduction was played at the end of another Doors song, "When the Music's Over". There are other lyrical references to Redding's song "(Sittin' On) The Dock of the Bay" throughout the song.