Ashlee Simpson's son Bronx, 15, towers over her on rare family outing with all three kids at Inside Out 2 premiere

Ashlee Simpson enjoyed a rare family night out with all three of their children at the Inside Out 2 premiere in Los Angeles.

The 39-year-old singer — who is the younger sister of Jessica Simpson — was joined by her husband Evan Ross, son Bronx, 15, daughter Jagger, who nine in July, and son Ziggy, three.

She wore a monochrome cream-hued outfit that included a loose-fitting jacket and matching trousers.

Evan, 35, wore a black blazer over a black T-shirt, teaming it with charcoal-colored denim pants. 

Simpson shares Bronx with ex-husband Pete Wentz, with whom she was married from 2008-2011.

Ashlee Simpson and husband Evan Ross enjoyed a rare family night out with all three of their children at the Inside Out 2 premiere in Los Angeles

The 39-year-old singer was joined by son Bronx, 15, daughter Jagger, nine in July, and son Ziggy, three

Bronx, who kept casual in baggy beige pants and a black hooded sweatshirt, towered over his mother as they posed side by side.

The teenager added white Nike sneakers and black-rimmed aviator eyeglasses.

For her part, Ziggy looked adorable in a light-colored dress layered under a pale pink jacket.

The youngster coordinated her look with white socks and pink Adidas sneakers with blue accents.

The youngest of the family, Ziggy was held by his dad as he wore a beige outfit with black and white sneakers.

Ashlee's ginger-toned locks were parted down the middle as they fell over her chest in lustrous waves. 

She looked beautiful with one portion tucked behind her ear, showing off her small gold earrings.

The Autobiography music artist's visage was aglow in a full palette of flattering matte makeup.

Ashlee and Evan pictured in New York in February

The parents threw a Barbie-themed birthday party for Jagger last August

Ashlee and Evan, the son of Diana Ross, have been married since 2014.

On a 2018 episode of Watch What Happens Live, the longtime couple opened up about their blended family. 

'I grew up with a big family, Evan shared. 'I think it's a beautiful thing.'

Speaking about his wife's ex Pete, he added, 'My relationship with Pete has been amazing. He knows I love his son very much, but it's his son.'