By studying rap lyrics, the experts said that traditional and complex rhyming comes so easy to hip-hop artists, the skill is almost 'second nature' to them.

"No touching! No eating something!" the rappers warn listeners, playing up the disease's dangers. What the song lacks in specificity it more than makes up in catchiness.

She also said that singing English songs improved her English because singing the words is a good way to learn them by heart.