Survival of the Sickest is the fourth studio album by American rock band Saliva. It was released on August 17, 2004. "No Hard Feelings" is the only song which features rap vocals in the bridge and it also has the same exact lyrics in "No Regrets" just using a different musical approach to both songs. The album produced two singles, "Survival of the Sickest" in July 2004, and "Razor's Edge" in the November of the year 2004. This album's title track is featured in the video games, NASCAR 2005: Chase for the Cup and Backyard Wrestling 2: There Goes the Neighborhood, and was the official theme song for WWE's Unforgiven 2004pay per view.