If you aren’t familiar with the vocal ability Nickelodeon star Ariana Grande possesses, well, sit down, open your ears and get ready to have your life changed. Seriously, this girl has some pipes!

We all knew she could sing, especially after her single “The Way” with Mac Miller hit the number one spot on the iTunes chart overnight, but her a cappella version of Whitney Houston’s “I Believe In You & Me” proves that she definitely has a chance at becoming the next "It" girl in pop music.

Listen to Ariana's chilling cover after the jump!

This is why we adore the ladies of Fifth Harmony. While they’re hard at work in the studio putting together their debut album (silent scream!), they keep feeding our fix by putting out new covers and showing off their amazing harmonies (pun intended).

The five gals stopped by the Tiger Beat and BOP offices to add a new cover to their collection and it was by our favorite boy band One Direction!

While we may or may not have watched this video over and over again for the past hour — and by that we mean we definitely did — we felt it was crucial to have our other favorite Fifth Harmony covers in one post. So, you’re welcome.

YouTube is a great way for aspiring musicians to get noticed, and these days, tons of singers get worldwide recognition from posting unique song covers online.

In Cover This, we're bringing you our favorite YouTube covers of the week from well-known cover singers who've already made a name for themselves, as well as those who may be getting their own big break by putting a twist on songs we already know and love.

Check out our batch of favorites in this week after the jump!