Rihanna better do things fast in next week. Because after Superbowl, Beyonce songs and videos will be released simultaneously and she'll overshadow everything Coldplay included...
Using the list umich posted, 6 out of 7 Rih leads have gone #1. That's 85.7%, and I rounded it to 86%. (I wasn't counting Work because we don't know if it will go #1 yet)