We know this sounds extremely strange. However, we're receiving reports that Justin hooked up with Rihanna during his relationship with Selena Gomez.

Life and Style magazine is reporting that Rihanna and the Bieb hooked up in early 2011, which is right around the time that Justin and Selena were pretty fresh into their relationship. Thing is, Selena only found out about it now (or a few months ago rather) which is what caused the colossal break up with Justin.

Selena also has a ton to say about Justin's behavior as of late. His current posse that includes rapper Lil' Twist is also causing her a ton of heartache because she doesn't want to see Justin go down the wrong path.