Rihanna and Chris Brown are back together again, recreating the music on two brand new songs.

The move has shocked many of their fans, especially after the two who used to be a couple, ended their relationship because of abuse. Three years ago Brown was accused and charged for assaulting Rihanna on Grammys eve.

Both Rihanna and Brown have each released songs on the Internet this week, featuring the other's voice. Rihanna has a remix of her song Birthday Cake with Brown. Brown has another version of his song Turn Up the Music featuring Rihanna.

It seems the two singers have put the incident behind them and now have a civil relationship.

Earlier this week, Brown tweet HAPPY BIRTHDAY ROBYN! to Rihanna, after which she retweeted the message, stating Thanks!

But though the two have forgotten the incident, it seems some of their Twitter fans cannot but the beating behind them. Here is how some Twitter users are responding to the news of Rihanna and Chris Brown getting back together, if only for professional reasons.

-- RIHANNA AND CHRIS BROWN WORKING TOGETHER? After what he did to her? They should sing Hit Me Baby One More Time #LMAO - Neslihan Akbal

-- Rihanna and Chris Brown to duet with: 'We Found Love in a Swollen Face' - ? Franco Sánchez ? @FrancoS4nchez

-- Wow.. I can't believe that Rihanna and Chris Brown are back.. I thought there was some kind of Police rule.. :S - Selenator. ?

-- RIHANNA AND CHRIS BROWN WORKING TOGETHER? After what he did to her? They should sing Hit Me Baby One More Time LMAO - KRISEXY STEWART ♥ @BlackBeliebery

Of course, there are other fans who are happy that the two have collaborated with each other and are saying that they are a perfect pair. Some fans even want Rihanna and Chris Brown to mend their relationship.

-- true fans will always support , independent of the decisions !! Rihanna and Chris Brown - Breezy Girl

-- I think it's pretty obvious that Rihanna and Chris Brown are just two people made to be together. - Josh Belton

-- Rihanna and Chris Brown i heared it...love it. - Nialler :3

-- Obviously know how wrong this is, but I really want rihanna and chris brown to get back together- Brogan Meaney

-- I'm kinda happy for Rihanna and Chris Brown to be dating again but i don't want him to hit her again.. - HausOfSamm♥

-- So how yall feel about Rihanna and Chris Brown recording together after their ordeal? Nobody knows what really happened but them- L♥v? Haas

What do you think about Rihanna and Chris Brown getting back together in the studio? Do you think it will lead to the rekindling of their relationship? Leave a comment in the box below. Also listen to the collaborations below: