United Kingdom, July 1 -- Rosie O'Donnell has hit out at the "gross excess" of Jeff Bezos and Lauren Sanchez's wedding.

The Amazon billionaire and his partner tied the knot in Venice last week in a lavish ceremony attended by A-listers including Kim Kardashian, Oprah Winfrey and Orlando Bloom but the 63-year-old comedian was far from impressed with the couple's celebrations.

Rosie wrote in her newsletter on Substack: "It turned my stomach. Seeing all those billionaires. Gathering in the gross excess of it all. The show of it.

"Is Oprah friends with Jeff Bezos? Really - how is that possible? He treats his employees with disdain. By any metric he is not a nice man.

"And his fake fem bot wife. Who looks like that? Why would he choose her...