Forget Star Jones vs. NeNe Leakes. It's now 'Celebrity Apprentice' contestant Meat Loaf who is all the rage -- quite literally, in the case of last night's episode.

The famous singer threw an unexpected fit over a set of art supplies, which he claimed were stolen from him by fellow contestant Gary Busey.

What followed was a downright frightening argument, during which Meat Loaf warned, "I am the last person in the f****** world you ever f****** want to f*** with!" Busey was clearly stunned -- which, if you watch the clip below, you'll understand why. (Seriously, when you make someone like Gary Busey look normal, you know there's a problem.)

Check it out now.

[Hulu]