A formal Whitney Houston tribute is on the way.  The GRAMMY organization hosted a big tribute that was taped last night at the Nokia Theater in L.A., and will air next month.  Check out Jennifer Hudson channeling young Whitney, plus Usher, Halle Berry & more celebrating the diva's memory.  And, of course, Bobbi Kristina with her fiancee Nick Gordon...

Last night in L.A., celebs were on hand for the We Will Always Love You: A Grammy Salute to Whitney Houston event.  And J-Hud stole the show by channeling one of Whitney's 80's looks as she performed in honor of the late star.  And we're sure she did it right.

She rocked the stage with a medley of "I'm Every Woman," "How Will I Know" and "I Wanna Dance With Somebody".
 

Jenny also posed backstage with Britney Spears who was on hand, and Brit said Whitney's "I Have Nothing" started her own music career.

Whitney's daughter Bobbi Kristina arrived in a red Herve Leger dress and strappy black sandals.  And with her new fiance, Nick Gordon, on her arm.

Krissy switched out her sapphire engagement ring for her mom's diamond rings for the occasion.  And the twosome held hands and got extra cuddly while getting teary eyed during the show:

Meanwhile, Halle Berry took the stage to salute Whitney in the show's introduction:

Gorgeous LBD for her.

LL Cool J hit the stage to offer up his memories.

And Taraji P. Henson and her questionable hairdo were there.

Usher performed "I Believe In You And Me."

And CeCe Winans performed with BeBe "Count On Me," which brought the whole crowd to tears.
Clive Davis was there to remember one of his closest friends, as well.
Celine Dion was also a part of the tribute, but had to tape her rendition from Canada of "Greatest Love of All," which was played on a screen for the audience.

"We Will Always Love You: A Grammy Salute to Whitney Houston" will be broadcast on CBS on November 13. The new reality show "The Houstons: On Our Own," premieres on Wednesday, October 24.

Pics: Getty/INF/Splash