This week, not only did [artist id="2408193"]Miley Cyrus[/artist] get to serve as a [article id="1634657"]mentor on "American Idol,"[/article] but she also got to hang out with pop music's newest idol, Justin Bieber, when both appeared on "The View." But she admitted that her 10-year-old sister, Noah, was a lot more excited to meet the 16-year-old than she was.

"Bieber fever ... I'm not necessarily a fan. I don't listen to that kind of music," she told MTV News at the red carpet for her new flick, "The Last Song," on Thursday night in Los Angeles. "I like Kurt Cobain. [He] is like my dream boyfriend."

Noah, however, was thrilled to get a very public shout-out from the "Baby" singer. "But my little sister was obsessed with him, and he actually gave her a shout-out on Twitter," she said. "And I thought that was really sweet. So I was like, 'Thank you so much. That meant a lot too.' ... He called her a cutie, and I haven't stopped hearing about it."

Meanwhile, Miley was still thrilled about being chosen to mentor the Idols this week. "It's cool. I was the youngest mentor, so I was excited that people really cared what I had to say and were inspired by me," she said. "And it was great."

Check out everything we've got on "The Last Song."

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