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Fifth Harmony Have A Big Secret To Share -- If You Ask For It Nicely

The red-hot girl group are telling all this Saturday on MTV!

You've heard they're BO$$es. It's clear they've got Oprah dollars. But can you say, with unwavering confidence, that you know Fifth Harmony forward and backward, inside and out?

The "X Factor" standouts and 2014 Video Music Award winners are ready to dish -- on themselves! This Saturday, between 8 a.m. and 1 p.m., the girl group royals will reveal a-hundo' unknown bits of information about themselves in between your regularly scheduled MTV programming. Celeb crushes? After-party routine? They tease their many reveals in the sneak peek below.

Oh, and Harmonizers? If you can tweet #100Things enough times to make our systems overload before Saturday, the ladies promise to release an exclusive, super under-wraps update. There have been a handful of posts so far, but there's a long road ahead -- so get to tweetin'!

Related: Fifth Harmony Have The ‘Right Stuff’ For This New Kids On The Block Cover: Watch A Sneak Peek

Anddddd, that's not all the ladies have on their plate -- they'll also appear on "Faking It" Tuesday night, where they'll perform the New Kids on the Block hit "The Right Stuff" at an underground dance party. Make sure to watch the episode at 10:30/9:30c!