The blockbuster congressional hearing with Jeff Bezos, Mark Zuckerberg, Tim Cook and Sundar Pichai has been rescheduled for Wednesday at 12 p.m. EDT.

The hearing, which was set to be held by the House Judiciary antitrust subcommittee on Monday, was postponed in order to allow lawmakers to attend a service for Rep. John Lewis. Lewis, a beloved civil rights leader known as the "conscience of the U.S. Congress," died at age 80 on July 20. Lewis will lie in state in the Capitol Rotunda on Monday, congressional leaders announced, and there will be an invite-only ceremony for him at 1:30 p.m. EDT — an hour and a half after the hearing was originally supposed to start.

The top executives of Facebook, Google, Amazon and Apple are set to testify virtually before the subcommittee about whether their enormous businesses have crushed rivals and unfairly disadvantaged their competition.

Updated: This post was updated at 6:15 p.m. PDT on July 23 to include more information about the service for Rep. John Lewis, again at 1:20 p.m. PDT on July 24 to confirm that the hearing will be postponed, and again at 8:45 a.m. PDT on July 24 to note the new date of the hearing.