Oh, Ruby can just stand here and look pretty,' teases Jackie Cruz as her OITNB co-star Ruby Rose makes her way to the stage at the Ainsworth, an upscale sports bar in New York City's Chelsea, last Friday. For the Orange Is the New Black premiere party, the bar's been converted into a concert venue, with the show's cast members performing exclusive original songs for the audience. Cruz, who portrays Marisol 'Flaca' Gonzales and Taryn Manning ('Pennsatucky') spent the last hour performing, but as Kings of Leon's 'Use Somebody' comes over the sound system, it turns into a ensemble cast sing-along.

Three other inmates join Cruz onstage first, leaving Rose without a microphone. 'She'll be fine,' continues Cruz, as she gestures from Rose's neatly gelled hair to her black pointed pumps, and everything in between. 'I mean, how hot is Ruby Rose right now?' We're not arguing the actress/DJ/recording artist/model isn't stunning. But it's her take-nothing-give-everything philosophy that's the real reason we're currently obsessed with Rose. Here, we chat with the 29-year-old Aussie about OITNB, gender fluidity, Justin Bieber, and the story behind her Ninja Turtle tattoo..