WATCH: Regine Velasquez, 4th Impact in a vocal showdown

Watch more in iWant or TFC.tv Regine Velasquez and the girl group 4th Impact engaged in a vocal showdown on Sunday. They wowed the crowd when they took the "ASAP Natin 'To" stage to effortlessly belt out Sia’s “Chandelier” and “Titanium.” The collaboration is a reunion of sorts for 4th Impact member Almira Cercado and Velasquez because she once competed “Star for a Night” which was then hosted by the veteran singer.