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One Direction is arguably the most famous boy band in the world right now, but talking to them about their new movie "One Direction: This Is Us" (among other things) on a Sunday afternoon is like hanging with a gaggle of puppies, albeit ones with lots of tattoos.

Outside the hotel, teen girls were slowly gathering with signs and moms, but inside, the boys were happy to answer your questions.

Who's the "Grand Daddy Master" of beat boxing, according to Liam? Who made them starstruck? Who does Harry dream of collaborating with? (Hint: He wants to stop, collaborate, and listen.) What makes Niall grumpy? And what do they think about the naughty fan fiction you are cooking up in your spare time?

All this and more (Harry's hair! Louis's tattoos!) await you in the video below. "One Direction: This Is Us" hits theaters August 30.
One Direction Answers Fans' Burning Questions