John Shearer/Getty Beyoncé's "BLACKBIIRD" collaborators are ... To celebrate the collaboration's success, the four women all got tattoos of their own versions of blackbirds.

Roberts explained that her tattoo has black wings and reads, "Thou shall reign heavenly fire." Related: Paul McCartney Praises Beyoncé's 'Magnificent' Cover of 'Blackbird' on Cowboy Carter ...