We really have to hand it to the Trolls movie, because it keeps blessing us with Justin Timberlake [1] music. On top of Timberlake's new single for the movie, "Can't Stop the Feeling," [2] he performed an absolutely beautiful rendition of Cyndi Lauper's "True Colors" with costar Anna Kendrick [3] at the Cannes Film Festival on Wednesday. With only their stunning vocals and some acoustic guitar, the pair nails the song — which will be featured in the upcoming animated musical — in every which way. Watch it above, and then check out their supercute red carpet appearance together [4]!