They both been around for longer than 9 years without showing any signs of fading.
They both have we're in the TOP 2 hottest Tours on Billboard this year.
They both are arguably the most influential artist out. ( Both had albums literally inspired by them)
They both are considered fashion icons.
They both are loved by the general public and have never had a backlash.
They both are the only 2 female artist to have success in both POP and Urban.
They both have the most Grammys out any of their peers.
They're both the only artist to be consider Legends by credible music award shows to their success. (Rihanna being given the icon award by the American Music and Beyonce's legend award by the Billboard awards in 2011)
This thread!!!!