Chris Brown and Rihanna are back? - collaborate on 2 song remixes

My esteemed readers ...Chris Brown and Rihanna are back together, musically speaking.

Two songs featuring the singers hit the Internet on Monday. Brown sings on the remix of Rihanna's sexually charged song "Birthday Cake," and she's on the remix of his upbeat tune "Turn Up the Music."

Brown tweeted a link to the new version of "Turn Up the Music" on Monday, and Rihanna later retweeted it. She also tweeted about the remix for "Birthday Cake."

 Wish them Happy Music Married Life... :)