Jessica Chastain joined Madonna onstage during Madonna's concert in Prague Saturday night and things got pretty steamy.
The Oscar-nominated actress strutted her stuff with Madge during the song "Unapologetic Bitch." She made sure to break out her sexiest dance moves for the occasion, before giving Madge a (not so) serious spanking.
"I gave Madonna a spanking & Ive a video to prove it. #rebelheart #unapologeticbitch," Chastain wrote on Facebook afterwards along with a link to a YouTube video (which you can watch below).
Madonna also shared an Instagram photo from the concert with the caption, "Tonights Sexy and Beautiful Unapologetic Bitch🎉💋💘. Thank you Jessica Chastain. Thank you Prague!"
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