Mark Ronson got the crowd going at Manhattan Magazine’s bash celebrating the release of Fendi’s new fragrance at Catch Roof. Ronson played DJ and Amanda Warner of the band MNDR performed “Bang Bang Bang.” “She jumped on a couch and did most of the song from there,” said a spy. Ronson’s sister, DJ Samantha Ronson, was absent, but tweeted, “The most important thing I learned from the Paula Deen scandal is . . . Damn that woman had a lot of endorsements.”