You knew it was going to happen sooner or later -- Glee is doing a Whitney Houston tribute episode! And we have a first look at Mercedes, Santana, Kurt, and Rachel singing an absolutely gorgeous acapella rendition of Whitney's hit "How Will I Know."

The Whitney episode will air this coming Tuesday, and will feature an entire 42 minutes' worth of Whitney classics. There will likely be some eulogizing/memorializing for the late singer as well -- this sneak peek clip shows the New Directions kids building a short of shrine to Whitney in a locker.

Watch and listen after the jump -- this performance is sure to give you chills!

Before Whitney Houston's tragic untimely death in February, she had completed work on her film Sparkle. The movie was to be her acting comeback, her first film role since 1992's The Bodyguard.

The film's subject matter actually mirrors Whitney's own story quite a bit: it's about three sisters who form a successful singing group and struggle with subsequent fame and drug problems. Whitney plays the sisters' mother, Emma.

Watch the very first trailer for Sparkle after the jump!

Whitney Houston's recent passing may have been sudden, but the legendary singer made sure her daughter Bobbi Kristina Brown would be taken care of after her death long before she passed away.

Inside Edition has obtained a copy of Houstons 19-page will, which was released on Wednesday in Atlanta, Georgia, and reports that it is Bobbi Kristina who will walk away with everything her mom left behind. That includes: money, jewelry, furniture, clothing, personal effects and cars.