Britney Spears has a big fan in three-year-old niece Maddie.
The daughter of Britney's sister, Jamie Lynn Spears, has made her YouTube debut with an impromptu performance of B's new tune, "Up N' Down."
"OMG! Check out my niece Maddie covering Aunt Britney's Up N Down," the pop star wrote on Twitter. "Sooooo adorable!" To say the least ...
"The beat just dropped and the room got sexy ... You're watching me like there's no one else around," sings Maddie Briann Aldridge, whose father is Jamie's on-off boyfriend Casey Aldrige. "Up and down, up and down, up and down."
Follow the jump for the original version (Britney's):