Question: When was the singer of "So What", born?

Context paragraphs:
So What (Field Mob song): "So What" is the first single from Field Mob's third album, "Light Poles and Pine Trees", featuring multi-platinum recording artist, Ciara, who performs the chorus and the bridge.  The single peaked at #10 on the "Billboard" Hot 100 chart making it Field Mob's first Top 10 single and Ciara's sixth.

Ciara: Ciara Princess Harris (born October 25, 1985), known mononymously as Ciara (pronounced , ), is an American singer, songwriter, record producer, dancer, model and actress.  Born in Austin, Texas, she traveled around the world during her childhood, eventually moving to Atlanta, Georgia where she joined the girl group Hearsay (not to be confused with the British group Hear'Say); however, the group disbanded after having differences.  It was at this time Ciara was noticed for her songwriting.  In 2002, Ciara met music producer Jazze Pha.  With his help, she signed a record deal with LaFace Records.

Supporting paragraphs: So What (Field Mob song) Ciara
Answer: October 25, 1985