Rihanna

Last night Rihanna went to Nobu, and the songstress caused a pap frenzy as she entered and excited the trendy eatery - check out the video below to see the mayem - we haven't seen something like this since the crazy Britney days!

Anyway, Rihanna arrived around 10:15pm and had dinner with a bunch of friends, but her abusive boyfriend Chris Brown was noticeably absent. The R&B songstress appeared to be in a great mood, and she looked like she was having a blast with her pals.

X17 photogs tell X17online exclusively, "She was dressed in all black, and she drank sake with her meal and did not look like she had a care in the world!" We know looking for houses and getting new tattoos is exciting and all, but do you really think she was on cloud nine, or was it all an act?

Rihanna and her friends left the swanky sushi joint around midnight and headed to Les Deux, and after partying it up, Rihanna was spotted leaving the club around 2am, heading home.

We're still wondering when are Rihanna and Chris going to make their first public appearance...