Cardi B and her rapper-husband Kiari Kendrell Cephus, professionally known as Offset, took to their respective Instagram accounts to share the first pictures of their 7-month-old son. "Wave Set Cephus," Offset captioned the picture as he revealed the name of their son. "When [Offset] suggested Wave, I was sold! THAT HAD TO BE HIS NAME," Cardi wrote on Twitter.