The 31-year-old mom-of-two shows off her enviable physique, while strutting and posing in the new music video for her latest single, “Work B-ch. Britney Spears looks like she hasn’t aged a day since 2001’s ‘I’m a Slave 4 U’ music video.Spears looks like she hasn’t aged a day since 2001’s ‘I’m a Slave 4 U’ music video After teasing to it for a week on her Instagram page with still shots, Spears officially released the video on Tuesday night during the iHeartRadio Music Festival telecast She clearly hasn’t missed a dancing beat since the days of “I’m A Slave 4 U.The pop star returns to showing off her skills in the nearly four-minute video, resembling other divas like Janet Jackson and Beyonce with a legion of female backup dancers behind her She wields a leather whip at one point and even dances among sharks The “Work B–ch” video been viewed on VEVO nearly 2 million times in just a few hours.The video even acknowledges that Spears is prepping for a two-year stage show in Las Vegas. The singer works it on a balcony in front of the Planet Hollywood, where she’ll take the stage starting in December.The singer struts in sexy ensembles, flanked by all female dancers The video includes a nod to her upcoming Vegas stage show.