Marriott's growing partnership with MGM Resorts means one lifestyle hotel brand hits the jackpot while another is leaving Las Vegas. Marriott and MGM Resorts officially debuted the W Hotels brand on the Mandalay Bay campus Wednesday on the Las Vegas Strip.

MGM Resorts International (NYSE: MGM) and Marriott International, Inc. (Nasdaq: MAR) officially mark the debut of W Las Vegas, transitioning the iconic 1,117-suite tower on the Mandalay Bay campus into the globally recognized W Hotels brand.

The Delano Hotel officially rebranded as the W Las Vegas on Wednesday, completing its transition to become part of the MGM Collection with Marriott Bonvoy.

Mandalay Bay and Luxor president and chief operating officer Travis Lunn said: "W Las Vegas represents an exciting new chapter for MGM Resorts and our guests seeking a new, sophis

The opening of the 1,117-room property marks the completed transformation of the former Delano Las Vegas and builds on the partnership between Marriott and MGM Resorts.

MGM and Marriott unveiled the new W Las Vegas hotel at Mandalay Bay, marking the first W Hotels property in Las Vegas.

Goodbye Delano, hello W Las Vegas.The resort tower on the Mandalay Bay campus has officially rebranded as of Wednesday, MGM Resorts announced.That means Marriot