11:30 PM EDT 10/16/2013
Originally posted 02/11/2013 05:00PM
Katy Perry and her Grammy Awards date, Girls star Allison Williams, made it a couples' affair at the Warner Music Group after-party.
Perry reunited with beau John Mayer while Williams reconnected with boyfriend Ricky Van Veen as the group later huddled with Selena Gomez, who arrived around 1 a.m., and Lana Del Rey for early morning drinks at West Hollywood's Chateau Marmont Hotel.
Top 10 News Categories
The most buzzed about stars this minute!
Treat Yourself! 4 Preview Issues
More On PEOPLE.com
Got a News Tip?
Send it to our People.com editors!