Kurt Cobain's daughter Frances Bean, 32, gives birth to SURPRISE baby with Tony Hawk's son - less than a year after tying the knot

Kurt Cobain's daughter Frances Bean Cobain announced the surprise birth of her and husband Riley Hawk's first child on Saturday.

The 32-year-old daughter of the late Nirvana frontman and actress Courtney Love used Instagram to share the shock news with her 1.6 million followers.

She wrote in the caption, '9.17.2024 Ronin Walker Cobain Hawk. Welcome to the world most beautiful son. We love you more than anything.'

Riley's father, renowned skateboarder Tony Hawk, joined in the comments to jokingly write about his firstborn grandchild, 'My favorite grandson!' 

Cobain is believed to have tied the knot with Hawk in a ceremony officiated by R.E.M.'s lead singer Michael Stipe in October 2023.

Cobain's post quickly collected tens of thousands of likes.

Harper Grohl, disgraced Foo Fighters lead singer Dave Grohl's 15-year-old daughter, was among those who left supportive comments.

The teen left a string of crying and black heart emoji under the post, which consisted multiple black and white photos of Ronin.

Frances reposted the upload in her Instagram Stories, adding John Lennon's 1980 song Beautiful Boy.

Cobain and Hawk did not announce that they were expecting a child, completely catching fans off guard with the news.