Britney Spears Sings 'Can't Help Falling in Love' A Capella on Her Birthday

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Britney Spears attends the 2016 MTV Video Music Awards at Madison Square Garden on Aug. 28, 2016 in New York City. 

Thinking of Madonna's impromptu Instagram cover of "Toxic," Britney Spears filmed her own little performance video this weekend. The pop star shared a clip of herself singing a rendition of "Can't Help Falling in Love," the ballad originally recorded by Elvis Presley, without any accompaniment. She posted the a capella video on social media Saturday (Dec. 2), which happened to be her birthday.  

"I was really inspired yesterday by @madonna’s post. She’s right… silence = death! These words really stuck with me, because they are so true," Spears began in her Instagram caption.  

She wrote, "I’ve always wanted to do a performance like this… singing in a pretty little black dress, with a simple 360, one take shot! I figured since it was my birthday, why not go for it?! So boom, when the clock struck 12:00, I did it!!!"

Spears has clearly been having fun with instavids lately: on Friday, she gave fans a peek at her Christmas decorations and how she's celebrating the holiday season with boyfriend Sam Asghari.

Watch Spears' "Can't Help Falling in Love" video below.