Jennifer Hudson Sings Moving Whitney Houston Tribute at 2012 Grammys

The 54th Annual Grammy Awards had everything — Katy Perry dissing Russell Brand with her performance, Adele's phenomenal triumphant return, Sir Paul McCartney, and of course, tributes to the late Whitney Houston.

OK! NEWS: LL COOL J OPENS THE GRAMMYS WITH A PRAYER FOR THE LATE WHITNEY HOUSTON Jennifer Hudson had less than 24 hours to rehearse given Whitney's untimely passing, and was reportedly still heartbroken on stage. Apparently Jennifer sobbed during rehearsal; it appears the two singers had a close relationship. In 2009, Whitney presented the American Idol alum with the Grammy for Best R&B Album. OK! NEWS: ADAM LEVINE, JESSIE J, MIRANDA LAMBERT & MORE SPEAK OUT ABOUT THE LATE WHITNEY HOUSTON ON THE RED CARPET OF THE 2012 GRAMMYS As LL Cool J opened the show with a prayer for the late singer, there's no denying there were heavy hearts at the Staples Center. As Jennifer took the stage, she did her own version of "I Will Always Love You." According to RadarOnline, J. Hud looked emotional when she sang the song but kept her composure by ending the Dolly Parton-written song with lyrics of her own: "We will always love you."