Rihanna, Christina Aguilera Dinner-Date [PHOTOS]: Are SIngers Working On New Music Together?

Move over Katy Perry — it looks like Rihanna has a new bestie.

The "Diamonds" singer stepped out this weekend to grab a bite to eat with Christina Aguilera. The two singers dined together at upscale eatery Giorgio Baldi in Malibu, California, where they were joined by Xtina's fiance Matthew Rutler.

Click here to see the picture of the two together.

According to the DailyMail, the singers looked immersed in conversation as they drank red wine and talked over a candlelight Italian dinner. They looked gorgeous and casual, as Christina wore a white blazer over a black tank top to dinner with a white-and-black fedora hat to match. RiRi looked every bit as glamorous in her little black dress that she wore with a black-and-white jacket over it. She dressed down the ensemble by wearing some black sneakers with it.

No news yet on what the two were talking about over dinner, but we are personally hoping they were discussing possibly collaborating on a new song. As we previously reported, Christina is hard at work on a new album, as we teased a picture of herself in the studio while she was pregnant with her daughter.

Click here to get the details on the sound Christina's is going for on her new album.

Christina and Matthew were enjoying a night out after the two welcomed daughter Summer Rain to their family six weeks ago. This is the first child for Matt and second for Christina, was shares 6-year-old Matt with ex-husband Jordan Bratman.