Louise "Blue Lu" Barker (née Dupont) (November 13, 1913 – May 7, 1998) was an American jazz and blues singer. Her better known recordings included "Don't You Feel My Leg" and "Look What Baby's Got For You."
She was born in New Orleans, Louisiana, and often sang and performed with her husband Danny Barker, a regular of the New Orleans music scene.
The recording of "A Little Bird Told Me" by Barker was released by Capitol Records as catalog number 15308. It first reached the Billboard chart on December 18, 1948 and lasted 14 weeks on the chart, peaking at #4.
Barker was inducted into the Louisiana Blues Hall of Fame in 1997, one year before she died in New Orleans at the age of 84.