Ashlee Simpson gave birth to a son. The 36-year-old singer and younger sister of Jessica Simpson shares on Instagram that she gave birth to Ziggy Blu on Thursday.

“Our sweet little boy has arrived. We are overjoyed and very blessed,” said the singer with a photo of her son. “I am in seventh heaven”, her husband Evan Ross, son of Diana Ross, writes below the message.

It is Simpson and Ross’s second child together.ย They already have a five-year-old daughter: Jagger.ย With her ex-husband, Fall Out Boy bassist Pete Wentz, Simpson had son Bronx in November 2008.