United Kingdom, March 12 -- Conan O'Brien has promised a "very powerful" tribute to his late friend Rob Reiner at the upcoming Academy Awards.

The When Harry Met Sally filmmaker and his photographer-producer wife Michele Singer Reiner attended Conan's holiday party with their son Nick in Los Angeles on December 13, just hours before they were found dead at their home, and the 62-year-old presenter has promised a fitting memorial at this Sunday's (15.03.26) Academy Awards.

Asked about the tribute to Rob - whose son Nick has been charged with the murders of his parents - as the red carpet was rolled out at Los Angeles' Dolby Theatre ahead of the Academy Awards, Conan told Extra: "It's hard to sum up in this environemnt and would sound kin...