As you probably know, Britney Spears and Sam Asghari got married last week. She took to Instagram to share photos and video of her "fairytale" wedding. Photos show her celebrity guests, while video shows moments from the ceremony, and the big party that followed. Brit's mom Lynne, who wasn't invited, commented on the photos, saying she was "happy for her". Britney's first ex-husband Jason Alexander attempted to crash Brit and Sam's wedding, and now she's taken steps to protect herself against him.