Taylor Swift is not only the biggest pop star on the planet, but also the biggest worrier.
Right now she is worrying about this interview – her first major sit-down chat of the year.
Mr Carter was then arrested and bundled into the van over claims he had 'assaulted' an officer with his camera, resisted arrest and was drunk and disorderly.
He was held in a police cell for five hours before being released on bail at midnight.
‘I worry about everything all the time,’ she says with a grin.
‘We could do our entire interview me telling you how many things I’ve worried about since breakfast.
Among those stopped included six people driving vehicles in such a bad state they were seized by police, one man arrested for possessing drugs, one for stealing a disabled badge and several fly-tippers.
‘If I have an opinion on something, I act accordingly – and I believe music is valuable.’ She ponders whether she’ll be the last person ever to sell this many records.
Its lead single, Shake It Off, was an i Tunes number one in 64 countries.
She is the first artist since the Beatles to spend six or more weeks at number one in the United States with three consecutive albums (at the time of writing, 1989 is into its 11th week at the top).
Mr Carter, 44, lodged a complaint and has since received a personal apology from PC Farooq and Rob Beckley, deputy chief constable of Avon and Somerset Constabulary.
The force yesterday refused to comment on the case, except to say that the disciplinary process was resolved to Mr Carter's 'satisfaction'.
Mr Carter said he is 'relatively happy' with the outcome as he hadn't wanted the officer sacked.