GQ and Giorgio Armani Party: After Khloe Kardashian hosted the E! Grammys after party, she headed to the GQ and Giorgio Armani Grammys bash in Hollywood, Calif with her sisters Kendall and Kylie Jenner. Rita Ora, Tinashe, Christina Milian, Tyga, Wiz Khalifa and Jason Derulo were also there, and Calvin Harris and his girlfriend Aarika Wolf, and Miguel and his girlfriend Nazanin Mandi turned the event into a date night. We can't help but wonder if Rita and her ex- Calvin Harris were there at the same time.
Grammys Official Awards After Party: Kim Kardashian and Kanye West headed to this bash right before the "Only" rapper went on a major rant about Beck and the E! mic flags at the E! after party. Jessie J also performed at the bash.
Sam Smith's VIP Grammy after party: Taylor Swift was spotted getting cozy with Hozier at the bash, according to E! Online, which reported that "they were hanging out a lot and talking with each other. They looked really cute together." A source also told the site Taylor even gave the "Take Me to Church" singer a few kisses on his cheek.
The party was held at a private estate in Bel Air, where Katy Perry, Rita Ora, Haim, The Weeknd, Skrillex, Darren Criss and Diplo were also in attendance.
Lil Jon and Pandora Party: Lil Jon hosted and served as the DJ at the second-annual bash, where VIP guests rocked out to his set, munched on small bites and enjoyed an open bar.
Warner Music Group Party: Nick Jonas, Olivia Culpo and Ed Sheeran were among celebrities at the party at Chateau Marmont, where Charli XCX posed in a bright pink dress with a tutu with a tiny pup who had on a matching look. Charli went on to perform inside, as Taylor Swift hung out with her BFF Jaime King. Jamie Foxx, Taye Diggs, Miranda Kerr, Ashley Benson and her on and off-again boyfriend Ryan Good were also there.
Universal Music Group: Bastille, Beck, Rihanna and Zendaya were among celebs that hit the bash. Katy Perry was spotted hanging out with Sam Smith inside as well at the Theater at the Ace Hotel.
Meek Mill official Grammy after party: Nicki Minaj changed into a cleavage-baring mini dress and posed for pics on the arm of her rumored beau Meek Mill. Khloe Kardashian was also there, and posed for a pic with her ex French Montana and the host of the evening. Justin Bieber also stopped by, rocking a black top hat.
Adidas Grammy Party: Meghan Trainor partied with her dad, among the likes of Pharrell and other celebs at the I am Other and Adidas Grammy party to celebrate the "Happy" crooner at the Park Plaza Hotel.
Sony Music Party: Haim, Jordin Sparks, Jamie Foxx and John Mayer were among attendees at the bash, where Meghan Trainor partied with her brother.
Want More? Like us on Facebook
Gallery | 2015 Grammy Week: Star Sightings