Rihanna popped up in Ireland today to shoot a new video for her single "We Found Love." She's fresh off a stint in Brazil performing at the Rock in Rio event. Katy Perry, one of Rih's best buds, was also in the city to perform at the weekend-long festival. There was enough downtime that Rihanna could throw on a bikini to chill at the beach with friends between rehearsals and her gig. Amid her hectic schedule of jet-setting, Rihanna also managed to film a cameo for Extreme Makeover: Home Edition. Her episode, the two-hour season premiere, aired last night and also featured special guest First Lady Michelle Obama.