"It's Gotta Be You" is the debut and winner's single by Isaiah, the farewell season winner of The X Factor Australia. "It's Gotta Be You" was written by Anthony Egizii and David Musumeci and was released digitally immediately after it was announced he had won, on 21 November 2016 as the lead single from his self-titled debut album. The song debuted and peaked at number 26 on the ARIA Singles Chart. As of September 2019 the song has gained over 230 million streams on Spotify and was certified platinum in 2018.