As Las Vegas tries to return to business-as-usual mode, some changes to the entertainment calendar are still happening two days after the massacre at the Route 91 Harvest Festival.

Most notably, Jennifer Lopez has postponed her October 4, 6 & 7 dates at the Axis at Planet Hollywood. Ticketholders for those shows can now seek a refund refunds or exchange their tickets for a 2018 date.

Also, alt-rock band Cake is postponing its October 5 show at the Chelsea inside the Cosmopolitan. The show will be made up on February 17, when the October 5 tickets will be honored. (Refunds will also be offered for those who can't make the new date.)

One event that won't be canceled or postponed is First Friday. The Downtown event released a statement confirming that its 15th-anniversary edition will still happen October 6, albeit with increased security.