Her denial to their rumoured romance comes a month after she first refuted the reports, reported E! Online.
Baldwin, 18, was rumoured to have started dating the 20-year-old 'Baby' hitmaker after his split from Selena Gomez last year.
"We're just friends. I've known him for a very long time, since I was about 13. He's just going through a time in his life where he's transitioning in a really positive way and he needs good people around him.
