Tyrese Mourns Paul Walker on Instagram

From Rihanna and Katy Perry reuniting to Fast and Furious star Tyrese mourning the loss of of Paul Walker, Diana counts down the top Instagram posts of the week. Justin Bieber is notorious for taking shirtless selfies but the picture he posted this week takes the cake with over 1 million likes. Kim Kardashian and Kanye West also make the list as they pose for a picture in a woman's bathroom?