Yes, they did! Miley Cyrus & Katy Perry compare boob sizes at the Grammys (See Photos)February 9, 2015 | Sola February 9, 2015 Sola by Anike JacobsWhile having fun at the #Grammys red carpet, American singers Katty Perry jokingly compared their boobs. Who’s got the bigger mounds? You tell us. Tags: 2015, breasts, Grammy, Katy Perry, Miley Cyrus Leave a reply Cancel replyYour email address will not be published.