#24. The-Dream: "Eh!"
→It's safe to say The-Dream might not have a career without the "Eh!" ad lib. From "Shawty Is Da Shit" to "Let Me See The Booty," Dream's used the sound to carry a tune on most of his major hits. Not to mention the fact that other artists, like Mariah Carey on "Touch My Body," have used it, too.