With the sudden and tragic passing of Whitney Houston, there’s no doubt there will be scores of tributes. There was a tribute last night at music executive, Clive Davis‘ famous Pre-Grammy Party. There will be one tonight at the Grammys.. Rumors are singers Jennifer Hudson and Chaka Khan will sing in her honor…(Khan dropped out at the 11th hour-stating via twitter she didn’t feel it her appearing would be appropriate at this time)