Paulino Rubio and Julieta Venegas come to mind, simply for their star power, if nothing else. Not sure if they measure up to the sexiness overload that is Shakira! In the sexiness regard you might like Alexandra Stan from the Romanian House genre...
A little off topic but if it's about sounds, I find some of her music similar to that of Rhianna, Janet Jackson, and Madonna (2000-2005 era).
