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!

Gossip Girl concluded last year with a truly shocking revelation ― the identity of Gossip Girl was none other than…

Well, we don’t want to spoil it, because Season 6 is coming to DVD on February 12, and you should probably watch for yourself. But since the show did such a good job at keeping GG's identity mum for six seasons, it got us thinking about the real-life secrets that have been kept from us by some equally rich and beautiful people.

These days it’s harder than ever for celebs to keep things on the DL, thanks to paparazzi and the lightning-fast speed of internet gossip. But there are a few notable exceptions of juicy tidbits kept quiet for days, weeks, months, and sometimes even years!

Here’s a round-up of some of Hollywood’s best-kept secrets.

What should have been a joyous occasion now serves as a reminder of a music legend gone way too soon.

Whitney Houston would have turned 49 today and her daughter Bobbi Kristina Brown took to Twitter to honor her mother. Whitney tragically died last February due to an accidental drowning in a hotel bathtub combined with cocaine use. Afterwards, Bobbi Kristina went out with her boyfriend and the pair got matching wrist tattoos to commemorate her late mother.

What did Bobbi have to say about Whitney? Find out after the jump.