<p>Singer-songwriter Ashlee Simpson and her husband, actor Evan Ross have become parents to their second child.</p>.<p>The couple, who have named their newborn son Ziggy Blu Ross, took to Instagram to share the news on Saturday.</p>.<p>"Our sweet boy has arrived! I'm over the moon. We are so blessed!" Simpson, 36, wrote alongside a photo of their son, revealing he was born on October 29.</p>.<p>"I'm in heaven," Ross, 32, captioned the same photo.</p>.<p>The baby joins the couple's five-year-old daughter Jagger Snow and Simpson's son with former husband, musician Pete Wentz, 11-year-old Bronx Wentz.</p>.<p>Simpson announced her pregnancy on Instagram in May.</p>
<p>Singer-songwriter Ashlee Simpson and her husband, actor Evan Ross have become parents to their second child.</p>.<p>The couple, who have named their newborn son Ziggy Blu Ross, took to Instagram to share the news on Saturday.</p>.<p>"Our sweet boy has arrived! I'm over the moon. We are so blessed!" Simpson, 36, wrote alongside a photo of their son, revealing he was born on October 29.</p>.<p>"I'm in heaven," Ross, 32, captioned the same photo.</p>.<p>The baby joins the couple's five-year-old daughter Jagger Snow and Simpson's son with former husband, musician Pete Wentz, 11-year-old Bronx Wentz.</p>.<p>Simpson announced her pregnancy on Instagram in May.</p>