Photos of the day: Pre-Grammy parties [Part Three]...

Rihanna, who has been hard at work on her next studio album, took a break from those recording sessions to attend all the pre-Grammy festivities. It would be the biggest of snubs if she did not attend the Roc Nation/Viva Glam Pre-Grammy Brunch because Jay Z was there and pretty much everyone else signed under his wing. All the pre-Grammy action inside.

Looking drop dead gorgeous. This wavy black weave is everything.

She chilled with her mentor/boss Jay Z:

...who was spotted dining with his wife Beyoncé at a restaurant in Venice, CA right before the Brunch. What do they have planned for us during tonight's big ceremony at the Grammys? The pair will reportedly perform 'Drunk In Love':

Rihanna also hung out with Willow Smith:

Willow is slaying:

But her brother Jaden seems to have turned into an overnight hippie. Not a good look:

Adrienne Bailon was there too. Was there a pre-GRAMMY party she DIDN'T attend?!?!

Big time artists helped to honour legendary singer-songwriter Carole King at the 2014 MusiCares Person of the Year Gala at the L.A. Convention Center over the weekend. Fouteen-time Grammy winner Alicia Keys was one of them among others.

Backstage, she hung out with Miguel and Pink:

Um.... Miguel on the red carpet:

Pink backstage:

Sheesh. Someone should tell Ciara that it's actually okay for a pregnant woman to wear nice clothes. She's not even huge so I simply don't get it. Seriously, there are ways you can conceal a baby bump in style and this aint it:

Lady Gaga also performed in honour of Carole King and posed on the red carpet:

Lorde attended and performed at the Delta Air Lines Toasts 2014 GRAMMY Weekend Reception in West Hollywood. She scares me:

Kelly Rowland attended Spotify and Troy Carter pre-Grammy party in Culver City:

Jennifer Hudson and Clive Davis had a portrait session to celebrate Sunday's Grammys:

Toni, Tamar, Traci, Towanda and Trina Braxton attended the Empire Hotel to kick off Grammy weekend and witness the launch of Gain’s first ever single-use detergent, Flings:

Toni Braxton:

Tamar Braxton:

Keyshia Cole flocked to VIBE's second annual pre-Grammy Impact Awards at Carondelet House. Rap icon Nas was honoured in recognition of his influence on hip-hop culture over the past two decades.

She hung out with fellow R&B divas Chrisette Michele and...

Elle Varner. This blonde doesn't look good. It washes her out.

Rita Ora attended the 300 Entertainment X Encore Sessions Grammy Awards Weekend Party at The Standard, where music mogul Lyor Cohen introduced his new WMG venture:

She also attended the Roc Nation/Viva Glam Pre-Grammy Brunch:

She arrived with her man Calvin Harris. So much for those split rumours.

While everyone and their mama is enjoying all the pre-Grammy festivities, Usher is currently in Panama:

...with his troubled protege Justin Bieber. I hope he gave that a boy a good talking to, because if his own biological father can't do it...