Ashlee Simpson Ross gives birth, welcomes son Ziggy Blu with Evan Ross.

Ashlee Simpson Ross announced the birth of son, Ziggy Blu Ross, Saturday afternoon. She shares her bundle of joy with husband, actor Evan Ross.

“10-29-2020 Ziggy Blu Ross,” the singer wrote beside a photo of the newborn. “Our sweet boy has arrived! I’m over the MOON we are so Blessed!”

Father Evan added, “I’m in heaven,” on his own announcement post.

The newest addition to the Ross family will share his birthday with aunt, “Black-ish” star Tracee Ellis Ross, who turned 48 years old Oct. 29.

Baby Ziggy joins big sister, 4-year-old Jagger. The couple, who wed in 2014, announced they were expecting their second child together in April. Ashlee also shares a son, Bronx Mowgli, with ex-husband Pete Wentz.