Stevie Wonder -- I Just Called to Say I Dumped You ... Divorce Final

Stevie Wonder is officially divorced from his second wife Kai Millard Morris.

Under the settlement, Stevie has agreed to pay $25,000 a month in child support for their 2 kids ... ages 14 and 10. Stevie and Kai agreed to joint custody. According to the agreement, Stevie can take the kids on the road when he tours on a limited basis.

Stevie used his thumbprint instead of a signature to sign off on the settlement.