In a place like Los Angeles, where most of the stars come out at night to party, the competition to get in the club-of-the-moment is fierce.
For example, the West Hollywood vintage lounge Crown Bar, which is said to be the playground of Lauren Conrad and Brody Jenner, runs a very high preference and only the hottest and well connected can get in.
A very true fact as "American Idol" big-wig Nigel Lythgoe found out after he was denied entry, even though his pal Ryan Seacrest booked him a pricey table to celebrate his birthday. Others who were denied entry included Golden Brooks and Alli Simms.
Apple Lounge was the next pricey club, which allows entry only to the likes of Leonardo DiCaprio, Paris Hilton and Lindsay Lohan, and which prides itself on being star-studded.
The next club is the super small lounge Coco De Ville, located inside popular eatery STK and it a varied crowd from "The Hills" hotties, to Kim Kardashian, Tila Tequila and the A-list likes of Jamie Foxx and Diddy.
Teddy's, a lounge housed in Hollywood's historic Roosevelt Hotel, is known for its tight door and upscale crowd of celebs and the industry elite.
Uber-upscale Villa looks like a billionaire's livingroom. Treated as a highly exclusive and lavishly sexy house party, the only way to gain access is to have a relationship with someone in the Villa family.
Thus the door remains one of the tightest in Hollywood. Being a celebrity does not ensure your entrance, even Britney Spears was denied by the iron door.
But the toughest Hollywood club of all is still Hyde, which can only hold about 100 people and is described by a L.A. nightclub insider as "the size of my college dorm suite." Hyde has become a staple of the city's nightlife scene akin to the city's heralded eateries Spagos and Mr. Chow.
"This place remains a fortress," Fox News quoted a source as saying.
In NewYork, the nightlife isn't nearly as cutthroat as Lalaland, but party-seekers still need more than beautiful smiles and overstuffed wallets to get in.