Nineteen-year-old Kristinia DeBarge has been hitting me hard with her tough-girl side. Her "bad girl" takeover is even the subject of her second single, "Sabotage," so it's not just me. And when it came to Kristinia's debut video, "Goodbye" -- which is up for Best Choreography at the 2009 MTV Music Video Awards -- I thought she might kick my ass through the screen.

But in her "The 5" Buzzworthy interview, I experienced The Softer Side of Kristinia -- mainly love for her teacup Pomeranian and devotion to her diary (look out for her novel someday). But that tough girl edge still comes through (is it the DeBarge blood?), and not just because she owns a jar of pickles a day. Doesn't she just have a don't-eff-with-me aura to her? Anyway, when Kristinia talks about her rock music fandom... fun's over. You can see it in her face: Kristinia is deadly serious about Led Zeppelin. And I'm not questioning it.

Watch Kristinia DeBarge's brand-new interview, and after the jump, watch her perform "Sabotage" from yesterday's episode of It's On With Alexa Chung.