Britney Spears

Britney Spears

Photo courtesy of Britney Spears' Twitter account / RCA Records

Pop superstar Britney Spears celebrated her birthday on Dec. 2 in a very special way. She thanked fans for all their support with an intimate rendition of Elvis Presley's "Can't Help Falling in Love."

Spears turned 36 on Dec. 2 and gave fans a little gift on Instagram. Queen of Pop Madonna shouted out Britney's birthday earlier by covering her song "Toxic" in a post also dedicated to World AIDS Day. Spears wrote that Madonna's words "silence = death" moved her to do something that she's always wanted to do: simply sing in a one-take, 360-shot video.

In a black dress, Spears beautifully belted out Presley's "Can't Help Falling in Love." The acoustics of Britney's big home amplified her heartfelt rendition in the short and sweet clip. This past year Spears has been on a mission to silence her lip-sync critics. Back in July, she crooned the heck out of "Happy Birthday" for her bodyguard and later in August, Britney went off script for a raw cover of Bonnie Raitt's "Something to Talk About."

Those who want to see her Las Vegas residency at Planet Hollywood only has a few more shows left to do so. Spears wraps up Britney: Piece of Me with the final concert on Dec. 31.