Zedd shared a Instagram video earlier this week which opens with a portion of Zedd's track, reported Aceshowbiz.
"All my life," the same way One Direction sings the same three words on their own song.
The Russian-German musician did not say anything directly about the striking resemblance but captioned the post with a shocked emoticon.
"True Colors" appeared on Zedd's latest album of the same title that was released in May.
The musician, however, is receiving a lot of backlash from the fans of the band. They argued that the same three words and similar melody on both songs were not enough for the DJ to call out the group.