Dave Grohl‘s daughter Violet has re-emerged on social media in the wake of her rock star dad’s baby bombshell … posting a series of dark and moody pics reflective of the spooky season.

Dave’s 18-year-old posted on Instagram Wednesday evening … her first upload since the Foo Fighters frontman confessed to fathering a child outside his marriage with wife (and Violet’s mom), Jordyn Blum.

For her big return to social media, Violet uploaded a carousel of literally dark images … including a snap of a Super A Foods at night, a concert, and a tub filled with flowers, among others.

She also posted on her Instagram Stories, sharing another selfie from her photoshoot … choosing to play Bauhaus’ “Silent Hedges” instead of her rock star dad’s music in the background.

Dave welcomed Violet with Jordyn back in April 2006 … later expanding their family to include their other 2 daughters, Ophelia and Harper.

Yet, the Nirvana alum sparked controversy in September when he announced the arrival of “a new baby daughter, born outside of my marriage” in a post shared on Instagram.

At the time, Dave promised “to be a loving and supportive parent” to the child … but did not reveal the little one’s name or the identity of her mother.

He added … “I love my wife and my children, and I am doing everything I can to regain their trust and earn their forgiveness.”

Violet has yet to directly to address the baby news … but previously deactivated her Instagram account.