Britney Spears and Her Niece Celebrate Madonna's Birthday by Dancing Around to "Vogue"

Monday marked Madonna's 58th birthday, and to celebrate, Britney Spears took to Instagram to share an adorable video of herself dancing with her 5-year-old niece Lexie. In the clip, Britney and Lexie — who takes a strong liking to a foam cylinder — prance around the room to Madonna's hit "Vogue," and at one point, Britney grabs a her own roller so the two can "play swords."

Britney, who collaborated with Madonna on 2003's "Me Against the Music" and shared a steamy kiss with the singer during the 2003 MTV VMAs, is returning to the award show's stage later this month to perform her new material. Her ninth studio album, Glory, will be released on Aug. 26, and we've already been treated to four new songs from the project.