Madison Beer

You may not know her name just yet, but Madison Beer's career is just getting started.

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After the 15-year-old was discovered by Justin Bieber, her life became a whirlwind when she was quickly brought into a recording studio and was filming a music video before she knew it. And it didn't hurt when Bieber made a cameo in the clip — paying it forward after Usher did the same for him.  

So what's Beer's relationship like with her mentor now? Watch: