Rihanna is clearly a celebrity who has a strong foothold on the A-list status, and never has to worry about being let into any establishment.  While A$AP Rocky may be considered to be a rising hip-hop artist, his name holds less value as a "top priority celebrity" when it comes to being allowed into certain venues.

Last night (March 14th) Rihanna began her night by enjoying a delicious meal at the fine restaurant, Emilio Ballato, in New York City, before making her way to party hard at the Avenue nightclub.  Jermaine Dupri was the DJ on deck at the club packed with various celebrities. 

Rihanna was, as on-lookers have described it, "wiling out".  A$AP Rocky however, couldn't even make it past the front door to have the chance to start "wiling out" in the club.

The Daily News reported on his club entrance rejection:

The Harlem-born rapper arrived at the Chelsea hot spot around 2:45 a.m., about the same time as artists Wale and Meek Mill, who were meeting the "We Found Love" singer inside the club.

Everyone had no trouble sliding past the velvet rope — except for Rocky. Famed doorman Wass Stevens, now on crutches due to a motorcycle accident in January, let the other artists and their groups breeze into the club.

But 23-year-old Rocky, considered by many to be a rising star in hip-hop, was stuck outside with a group of "about eight, mostly dudes." The witness says the rapper "got really angry, and started yelling" at the injured doorman and actor, who kept his cool, but eventually called security to get the rapper to back down.

Rocky "was really upset," says the source, adding that he watched the other musicians walk right by him into the club.

Source: globalgrind.com