Everyone wants the first impression rose on The Bachelor premiere. Even a horse is in the running. One of Ben Flajnik's blonde beauties, PhD student Emily O'Brien, has a "gangsta" side. At least, that's what she thinks. She impresses Ben with a (long!) epidemiology-inspired rap comparing love to a disease in this sneak peek clip from the Season 16 premiere. Will her rap steal Ben’s heart or send him into cardiac arrest?