The 39-year-old musician talked about the group as a foursome during his Instagram Live video with fans.
“So I like Fifth Harmony, but then Camila Cabello left the band and now it’s just this,” he said, playing four notes on his piano, as opposed to five notes in a harmony.
“If you really wanted to add me, you’d get this,” he said to a sixth note. “And that’s one too many notes. Point being: Hi, Camila.”
Watch John talking about 5H below!