The singer, who is engaged to Future, real name Nayvadius Wilburn, welcomed the tot yesterday (May 19).
Following reports that she had given birth, Ciara finally confirmed the news this morning.
She posed a message on her Twitter page with details of her newborn son. The star wrote: FUTURE ZAHIR WILBURN 9lbs 10oz May 19 2014."
Alongside the message, she shared a photo of her son - although she only gave fans a glimpse of his arm and tiny fingers.
Congratulations to Ciara and Future!