Britney Spears' family members helped the music superstar ring in her 30th birthday and conclude her Femme Fatale tour in Puerto Rico on Saturday night.
The Spears clan, who have been instrumental in helping resurrect her career after those rough years, all came on stage as she took her final bow.
On hand? Her BF Jason Trawick, mom Lynne Spears, sons Jayden James and Sean Preston Federline, sister Jamie Lynn Spears and niece Maddie Briann Aldridge.
Watch them all bust a move below!