The girl group covered 1D's "They Don't Know About Us" when they stopped by KIIS 106.5 in Sydney, Australia, recently...and killed it. According to Billboard, the song is from the boy band's second album, Take Me Home, and was never released as a single.
As for what One Direction thought about it, they haven't shared their thoughts just yet, but Liam Payne has already shown his love for Fifth Harmony's new album Reflection.
Something tells us he might get his wish.
Hey everyone check out @FifthHarmony new album reflection and the song on it reflection is the best I wanna remix- Liam (@Real_Liam_Payne) February 4, 2015