STEVIE Wonder has filed for divorce from his second wife Kai Millard Morris.The soul legend, 62, is putting an end to his 11-year marriage with the fashion designer, citing irreconcilable differences.The couple – who have been separated for three years – have two sons together, Kailand, ten, and Mandla, seven.In court papers filed in LA, Wonder is referred to by his full name Stevland Morris.The Superstition singer – who was blinded shortly after birth – signed the papers using two fingerprints.He has requested joint custody of the couple’s sons and has agreed to pay support for his wife and children.Although Stevie earned his fortune prior to their marriage in 2001, a number of assets are set to be divided.The dad-of-seven is being represented by divorce lawyer Laura Wasser – who has previously worked with Britney Spears, Angelina Jolie and Kim Kardashian for their divorce and custody battles.It is the singer’s second failed marriage — he was previously married to singer Syreeta Wright from 1970 to 1972.