These children in a 2009 Cadbury commercial have awesome eyebrow dancing skills

The kids in this 2009 Cadbury Eyebrow Dance advertisement are pros at synchronizing their eyebrows movements to music. They also manage to keep completely straight faces the entire time, despite their maniacal eyebrow dances. I don't know what this commercial has to do with chocolate, but it's brilliant.  Meanwhile, I can't even raise one eyebrow higher than the other.