Shakira's fierceness, versatility and sultry style make her one monolithic pop-rock player. Her striking yodel echoes Alanis Morissette's in-your-face expressiveness, and the epic hard-rock hooks of AC/DC and Zep fuel her bold approach. The vallenato rhythms of Carlos Vives and the Caribbean-inspired medleys of Gloria Estefan set a standard for roots-honouring musicianship, propelling her rustic-informed confections.