Britney Spears screamed in terror as someone walked up behind her, while the pop diva was in her kitchen. The 35-year-old singer posted a video on Instagram in which she was busy making something to eat when a person, who was filming, whispered ‘hello’. “I swear… no where in my house is safe,” Spears wrote in the caption. This is the second time this week that the Slumber Party singer has been ambushed in her kitchen. On Monday, it was her sons, Sean Preston, 11, and Jayden James, 10, who caught her off guard. (PTI)