Miss Universe 2018 Catriona Gray sings “When You Believe” by Mariah Carey and Whitney Houston at the 20th anniversary celebration of Cornerstone Entertainment br br #Cornerstone20thAnniversary #NewsPH #PEPNews #PEPGoesTo #PEPvideobr br Subscribe to our YouTube channel! br Read the latest in showbiz at br Watch more videos at br Follow us! br Reddit: Instagram: br Facebook: br Twitter: Viber: Kumu: pep.