Jessica Simpson’s secret to good vocals? Snake sperm. In a silly Instagram Reel she shared over the weekend, Simpson said she’s been taking a syrup-like supplement to help her with her vocal performance — its contents were a mystery until a a recent Google search.

Jessica Simpson believes snake sperm has improved her singing. The 44-year-old singer-and-actress' vocal coach recommended she started drinking a "Chinese herb thing" and she revealed the special beverage has some very unconventional ingredients, but she thinks she's experiencing the benefits.

Jessica Simpson revealed the secret behind her smooth vocals. The singer shared a video on Instagram in which she admits to drinking 'snake sperm' at the recommendation of her vocal coach.