Betty White's 90th birthday bash guest list

Who's coming to Betty White's 90th birthday special January primetime tribute on NBC - which will also will be previewing her hidden camera show, "Betty White's Off Their Rockers" that night? The better question: Who is not?  NBC just released the list of well-wishers for the Jan. 16 show: Mary Tyler Moore, Hugh Jackman, Jay Leno, Amy Poehler and Carol Burnett . take a deeeep breath -- “Hot in Cleveland” co-stars Valerie Bertinelli, Wendy Mallick, Jane Leeves, and - take another deeeeeep breath -- her "MTM" co-stars Ed Asner, Valerie Harper and Gavin MacLeod -- and yet another deeeeeper breath -- Joel McHale, William Shatner and "many more," NBC helpfully adds.