Rihanna is a very popular lady at that time in the world. She is awesome. Rihanna has explained that she decided to work with ex-boyfriend Chris Brown on two new remixes because he is "hot". Rihanna and Chris broke up back in 2009, after he brutally assaulted her on the eve of the Grammy Awards. After having no public contact for several years, the pair shocked fans by recording two remixes together earlier this year.Rihanna explained to Ryan Seacrest that she wanted to work with Chris again because he is "the hottest R&B artist out right now". "You know, I thought about rappers, and I've done that so many times, and the hottest R&B artist out right now is Chris Brown," Rihanna said during the radio interview. "So I wanted him on the track and then in turn he was like, 'Why don't you do the remix to my track?' and it was a trade-off." But she played down rumours that the former couple are getting back together, claimin...