Kopi Luwak kopi luwak type process occurring naturally with muntjac and birds. Bat coffee is another variation that is in demand. Bats feed on the ripest coffee and fruits and spit out the seeds. These seeds are dried and processed to make coffee with a slight fruity flavor. Kopi Luwak Kopi luwak (), or civet coffee, is coffee that includes partially digested coffee cherries, eaten and defecated by the Asian palm civet ("Paradoxurus hermaphroditus"). Fermentation occurs as the cherries pass through a civet's intestines, and after being defecated with other fecal matter, they are collected. Producers of the coffee beans argue that
What Hurts the Most hip-swiveling chorus after a flurry of robotic drum beats is certainly a good giggle." Kurt Kirton of About.com named it one of the album's standout tracks. Chuck Taylor of "Billboard" gave "What Hurts the Most" a positive review, writing that "this track is remixed into a frothy uptempo anthem, complete with requisite percussive thump and an exulted vocal (with 12 mixes in all) that leaves the lyric's potential heartbreak in the dust." Taylor ended his review, asking "Wouldn't it be wondrous if American programmers renewed their vow in 2008 to put variety on the airwaves—or do we really need a