WATCH: Yaya Dub sings 'Someday We'll Know', reveals real voice

What the trending hashtag #ALDUBTheVoiceWithin means was known after Maine "Yaya Dub" Mendoza sang "Someday We'll Know" with her real voice.

During the segment "Juan For All, All For Juan" on Eat Bulaga's episode on Tuesday, September 29, the online sensation-turned TV superstar sang a few lines of the Mandy Moore hit.

Unlike the previous vocal cuts, however, it was dubbed in acapella which led many to conclude that it was Yaya Dub's real voice.

Her love team partner, Kapuso actor Alden Richards, knew it. He nodded his head, pointed at her and said: "Ikaw yun, ikaw yun."