'Bridgerton' cast members groove to 'Party in the USA' in cool TikTok video

What do the Bridgerton siblings do in between sets?

Make TikTok videos in their costumes, apparently.

Actress Florence Hunt, who plays Hyacinth in the hit Netflix series "Bridgerton" just shared a video of her and her co-stars do their own take on Miley Cyrus' iconic song "Party in the USA."

@flothe2nd Party in the BGR (bridgerton green room) #bridgo ? Party In The USA - Party All Night

Claudia Jessie (Eloise), Jonathan Bailey (Anthony), Luke Thompson (Benedict), Luke Newton (Colin), Ruby Stokes (Francecsa), and Will Tilston (Gregory) joined Florence in singing along to the song and putting their own creative twists on acting the lyrics out.

Although it's a bit startling to see the actors out of character — even holding a can of Coke — netizens fell in love with it. The video has garnered over 1.2 million likes and 6.1 million views.

Previously, Florence also posted a TikTok video of the "Bridgerton" cast singing to Kesha's "Tik Tok." The video has over three million likes and 15.9 views.

@flothe2nd and so the tik toks begin????????. #bridgertonnetflix ? TiK ToK - Kesha

From Shondaland and creator Chris Van Dusen, "Bridgerton" is about high society gossip in the 19th century wherein young ladies try to find love in London’s competitive marriage market.

Two seasons are currently streaming on Netflix. —JCB, GMA News