Musical.ly is being sold for at least $800 million. Recode reports:
The deal hasn’t closed yet, but Bloomberg pegs the price at $800 million, while the Wall Street Journal puts it at “$800 million to $1 billion”, which is the range I’ve heard. Without a public disclosure of the price, you’re generally safe betting on the lower number on deals like these, and assuming that the bigger number includes hard-to-hit earnout targets.