Ability to grandstand and self promote or in rare cases, a charisma that cannot be ignored. Such people stand out from the crowd without even trying to. Those people are the ones who are truly “fabulous”, not just pretending or aspiring to be.
To me, a fabulous person is one who drops everything at all times to help someone else. A person who can always be counted on to do the right thing and to do it well. Someone who thinks of others’ needs before their own.
An oversized ego is useful. The necessities must include publicists, sycophants and fools, along with adequate shielding from critics as well as those disposed toward objectivity.