Carrie Underwood opened the brand-new Resorts World Theatre Wednesday night with her new show, REFLECTION: The Las Vegas Residency.

The 5,000-seat venue, programmed and operated by Concerts West/AEG Presents, is the largest and tallest theater in the gambling mecca. Underwood’s shows is a celebration of her greatest hits from the last 15 years.

The residency is being extended into May and tickets go on sale 12/6 for shows on 5/11, 13, 14, 18, 20 and 21.