Rihanna and Adele will soon be next once We Found Love crosses Diamond and when Rolling in the Deep gets re-certified (and Hello). Truly the trinity of this generation.
She is the first and only for now female with a Diamond single in US. And if you search Bad Romance it shows 'Diamond'. So katy doesnt have a diamond single yet.
Dddd. Love the Way You Lie was certified 13X Platinum at the same time Bad Romance was certified 10X Platinum. So no.