An animated music video - little guy with a heart on his chest
I think this song is from '00s and in the music video there's a little guy with a heart on his chest. At some point there's also a grave somewhere. The entire video is black and white. I was convinced that the song's name was "Heart key" but I can't find it. It's something between pop and hip-hop, I guess. And everyone used to find this song extremely annoying.