Britney Spears [1] performed in the UK for the first time in five years [2] on Tuesday when she hit the stage at the Apple Music Festival in Camden. The morning after belting out some of her greatest hits, which included "Piece of Me," "Oops!...I Did It Again," and "Toxic," Britney looked like she was well aware that she had crushed it when she was spotted at the BBC Radio One studios. Dressed in a black-and-white dress, a black coat and hat, and heeled boots, Britney flashed a huge smile as she waved to fans and posed for a few selfies. The overseas outing comes just a few days after she delivered another nostalgic performance at the iHeartRadio Music Festival [3] in Las Vegas. And on a more personal note, she also recently shared a hilarious video of her sons, Sean Preston and Jayden James, scaring the living daylights out of her [4].