“I actually adopted two sons last year,” said Sia onSiriusXM’s YouTube channellast month.

“They were both 18 they’re both 19 years old now.

They were aging out of the foster care system.

Sia

Yeah, and I love them.”

Sia announced that she’s a grandma this week on Zane Lowe’s Apple Music show (viaPeople).

“My youngest son just had two babies,” announced the new grandma.

Sia

“I’m just immediately horrified.

No, I’m cool.

They call me Nana.

I’m trying to get them to call me Lovey, like Kris [Jenner].

I’m like, ‘Call me Lovey.'”

The proud grandma also opened up aboutadoptingher sons.

“It’s failing us,” she said.

“Not in my experience, in my sons’ experience.

They’ve been in 18 different locations in their 18 years.”

“I love him so much.”