Live's founder Lorne Michaels is celebrating 50 years of 'SNL,' but who will be toasting alongside him? Here’s everything we know about his wife.

Throw in the sheer tonnage of think pieces and appreciations and other navel-gazing and you’d be forgiven for asking: Do we also need a book about Lorne Michaels? Somehow, despite all of the above, Susan Morrison’s “Lorne: The Man Who Invented Saturday Night Live” — out Tuesday — emerges as indispensable,