Benefit concerts can have both subjective and concrete objectives. Subjective objectives include raising awareness about an issue such as misery in Africa (such as Live 8) and uplifting a nation after a disaster (such as ). Concrete objectives include raising funds (such as Live Aid) and influencing legislation (such as Live 8 or Farm Aid). The two largest benefit concerts of all time, in size, were the Live 8 and the Live Earth events, which both attracted billions of spectators. Scholars theorize that the observed increase on concert size since the Live Aid is happening because organizers strive to make their events as big as the tragedy at hand, thus hoping to gain legitimization that way.