Who knew budget accommodations could be something right out of a fantasy? In this episode of “What Were They Thinking?” Melissa shares the latest cheeky ad from Hostelworld, featuring ’90s diva Mariah Carey. According to Ad Age’s Viral Video Chart, the ad, “Even Divas Are Believers” — which debuted April 9 — made it to the No. 5 spot on the chart for the week ending April 15, clocking in more than 3.8 million views. To watch the video in full, check it out here.