Britney Spears is super bummed her oldest son Sean Preston Federline refused to spend Christmas with her. As Perezcious readers know, Britney was happy to spend the holiday with her son Jayden James by her side. But Sean chose to celebrate the occasion with his aunt Jamie Lynn Spears' family and his grandmother Lynne Spears in Louisiana. It was supposedly a choice made based on work obligations, but new sources are opening up and it sounds a lot more like a diss! Related: Kevin Federline Hasn't Spoken To Britney In HOW LONG?! First, the good news.