With five seasons under its belt, Entourage has devoted a lot of time to keeping our minds off our normal, just-getting-by existence and focused on the superficial, conniving, and totally awesome world of obscene Hollywood wealth and privilege. But while we appreciate Ari's vein-popping rants and Turtle's efforts to spend his best bud's cash in the most useless ways possible (hell, we would), what really keeps us coming back is the constant parade of stammeringly hot celebrity guest stares…er, stars. From Alba to Vergara, every episode gives us a new reason to join this entourage.