Just sang with the @davidfoster @officialdfoster! A dream come true singing one of his songs while he played!! AND ON THE CASTLE STAGE! #disneyparade #davidfoster #WDW #disneyworld #unreal #theprayer #imstillshaking THANK YOU MR. FOSTER A photo posted by Rhett Wheeler (@iamrhettwheeler) on Nov 12, 2015 at 10:00am PST Ariana Grande