Paris Hilton is preparing for this year's Halloween like many around the world.

She posted a throwback post of herself with Demi Lovato in Halloween costumes.

Hilton wore a hot schoolgirl uniform while Lovato imitated Pennywise.

The New York-born implied that she was in "spookyszn" mode, given the post.

She and Lovato are singers and actors and have a YouTube series.

The socialite was featured in the pop star's music video for "Sorry Not Sorry,"

She was there for Lovato when she had a near-fatal overdose in 2018.

Hilton focused on her mental and physical health while searching for her dog.

She marked World Mental Health day with a post showing that she got a full body scan.