George Lopez, but all youtube video of it has been removed/sanitized.
http://www.google.com/#hl=en&cp=37&gs_id=3b&xhr=t&q=jennifer+lopez+sarah+palin+la+cabrona&qe=amVubmlmZXIgbG9wZXogc2FyYWggcGFsaW4gbGEgY2Ficm9uYQ&qesig=xa8SwqmRhbtb-azD_a0zLg&pkc=AFgZ2tm6owpBn248MW9mUJC2egSS8zdmGHTPxBQxMmih5woB_cnlRcLLhMC5R9vYUJwjxwWnKhnI_uByMU4-tTWzVo93RRTTbA&pf=p&sclient=psy&source=hp&pbx=1&oq=jennifer+lopez+sarah+palin+la+cabrona&aq=f&aqi=&aql=&gs_sm=&gs_upl=&bav=on.2,or.r_gc.r_pw.&fp=d97c07d6cfed538e&biw=1280&bih=589
So little miss sweetness and light is as fake as most of hollywood. These people make me sick.