Ariana Grande revealed 25 fun facts about herself to Us Weekly Magazine, and some of what she revealed might surprise you. For one, she admitted that she’s afraid of heights, but LOVES rollercoasters. Halloween is her favorite holiday and when she was a kid, her mom thought she would grow up to be a serial killer because she loved wearing masks around the house. The 21-year-old even confessed that she sleeps in minimal clothing because her grandma encourages her to sleep naked. The color lavender, Monopoly, the movie “Bruce Almighty” and spontaneous trips to the pharmacy at 3 AM are just a few of her favorite things. On a motivational note, the “Problem” singer believes that happiness is the best kind of success. Grande’s new album My Everything is out now.