Evan Ross Says Daughter Jagger, 5, Was Initially 'Furious' About Getting a Baby Brother: 'So Upset'
Evan Ross and wife Ashlee Simpson Ross welcomed son Ziggy Blu in October
Jessica Simpson's Daughter Birdie Mae, 22 Months, Meets Ashlee Simpson Ross' Son Ziggy Blu, 3 Months
Jessica Simpson's Daughter Birdie Mae, 22 Months, Meets Ashlee Simpson Ross' Son Ziggy Blu, 3 Months
The singer sisters each have three children
Inside Ashlee Simpson Ross and Evan Ross' 'Bohemian' Meets 'Rock 'n' Roll' Nursery for Son Ziggy
The pair welcomed son Ziggy Blu on Oct. 29
Peekaboo! Ashlee Simpson Ross Shares Sweet New Photo of Son Ziggy Blu, 8 Weeks
The singer previously told PEOPLE she was looking forward to the "newborn phase" since "babies smell so good"
Ashlee Simpson and Evan Ross Share First Family Photo with All Their Kids on Bronx's Birthday
The sweet photo included the newest family member, 3-week-old Ziggy Blu
Ashlee Simpson Shares First Photo of Kids Bronx and Jagger with Their Newborn Brother Ziggy
The singer and her husband Evan Ross welcomed their son Ziggy Blu into the world last month