The American Heritage® Dictionary of the English Language, 4th Edition
noun-plural. Informal Highly fashionable celebrities; the smart set: "private parties on Park Avenue and Central Park West, where the literati mingled with glitterati” ( Skylines).
n. Celebrities or people with a lot of money; the smart set.
Word Usage
"According to the article, the Republican glitterati is rethinking being pro-life and against gay rights because it alienated moderates who are apparently focused on esoteric issues like jobs, health care and education."