RiRi Woo, the MAC Lipstick shade created in collaboration with Rihanna, sold out online in three hours!! During that time, “RiRi Woo” was trending on Twitter as customers complained of multiple failed attempts to get through to make the purchase. The collaboration was announced in February and at the time, Jennifer Balbier, senior VP of global product development for MAC said Rihanna insisted that “the color be suitable for every skin tone.” The next time the shade will be available will be in June. But for those with tickets to the Diamonds World Tour’s stop at the Barclays Center in Brooklyn (ahem!) you can buy them on-site at a MAC pop-up store that will be set up in the arena. Hit the jump for more details…..