In her long-awaited memoir, Kids, Wait Til You Hear This!, showbiz icon and EGOT winner Liza Minnelli — who turns 80 on March 12 — pulls back the curtain on a life lived at maximum volume. Across its 400-odd pages, the Cabaret star dishes on a life filled with famous friends, explosive romances, family wounds and backstage chaos. The Hollywood Reporter has sped-read through the book to compile a list of its wildest anecdotes and confessions, which include the full retelling of her Oscar-night humiliation; the inside account of her drug-fueled affair with Martin Scorsese; and gory new details behind two of her doomed marriages. Minnelli claims Lady Gaga insisted on a wheelchair at 2022 Oscars — and subjected her to a cognitive test Minnelli recalls the chaos surrounding her appearance at the 2022 Academy Awards, writing that after witnessing Will Smith slap Chris Rock onstage, she thought “nothing worse could happen that night,” only for what she describes as her own nightmare to unfold backstage. Scheduled to present best picture with Lady Gaga while commemorating the 50th anniversary of Cabaret, Minnelli says that minutes before air she was told she could not sit in the director’s …