Pop sensation, Lady Gaga, took over the London offices of The Metro newspaper on Monday.
She's been guest editing the international edition of the paper, holding meetings and deciding what articles to put in it.
Gaga was particularly interested in fairness and bullying.
She said: "Some of us aren't popular, some of us aren't in the in-crowd. I'm still not in the in-crowd, I still get bullied by tons of people."