‘Access Hollywood’ reports that Britney Spears arrived to the UCLA hospital at 5 a.m. on Wednesday morning under heavy police escort with husband Kevin Federline by her side. About an hour and a half later, mom Lynne and lil’ sister Jamie Lynn showed up. At 12:57 p.m., the singer gave birth to 6 pound, 11 ounce Sean Preston by C-section. “We are ecstatic to announce the birth of our son! Everyone is happy, healthy and doing wonderful. Thank you for all your love and well wishes!!” the couple said in a statement posted on Spears’ website.