Britney Spears Twerks to Justin Timberlake Song, Very Close to Fireplace

Britney Spears is proving she just enjoys a good beat, no matter who’s singing on the track … ’cause she posted a video twerking to her ex-boyfriend Justin Timberlake‘s song.

The singer-songwriter shared another of her famous dancing vids to social media … wearing a tiny lingerie outfit that let her whole backside hang out.

She starts off by twerking in front of a fireplace before she struts to the camera and starts twisting and turning while staring straight ahead.

Worth noting … Britney’s dance moves aren’t the only thing heating up the room … ’cause there’s a fire in the fireplace too — and, she gets very close to the flames.

Watch the video to see all of her dance moves … but, more interesting than just her dance is the song she’s shaking it to — Timberlake’s “Señorita.”

The hit 2003 song — a collab between Justin and Pharrell Williams — was co-written by Justin. No one’s saying his relationship with Britney influenced the track … but, she’s clearly vibing with it these days.

As you know … Britney and Justin broke up in 2002 after three years together — and, in her book “The Woman in Me” Britney claimed he pushed her to get an abortion while they were together and cheated on her.

Justin later issued a faux apology … which he instantly took back onstage before playing “Cry Me A River” — a track all about his relationship with Spears.