Quick Q: if Camila Cabello left Fifth Harmony, then why was she performing alongside the rest of the group on New Year’s Eve? But it turns out there’s actually a pretty simple explanation for Camila’s participation: they pre-recorded the performance for Dick Clark’s New Year’s Rockin’ Eve with Ryan Seacrest on ABC sometime before she left the group, E! reported. Meanwhile, Camila spent the actual night of December 31st as the host of Radio Disney’s Top 16 of 2016, a countdown of the year’s best songs.