Back in February 2012, Justin Bieber posted a little video to YouTube that featured him and his famous pals Selena Gomez, Ashley Tisdale, Big Time Rush and more goofing off to a catchy new song: Carly Rae Jepsen's [article id="1701378"]"Call Me Maybe."[/article] Exactly a year later, that then-unknown tune is up for Song of the Year at Sunday's Grammys.

Jepsen's little-song-that-could debuted on the Billboard Hot 100 on March 10, just weeks after Bieber's homemade video went viral. From there, the video tributes didn't stop: Sports teams from Harvard, Duke, UConn, Syracuse and Southern Methodist University all had their own video versions of the song, as did the 2012 U.S. Olympic swimming team, Katy Perry and James Franco.

All the love added to the song's success and its ubiquity, and it's been a whirlwind for the Canadian newcomer. Looking back, she knows exactly where she was last February, when she viewed the Grammys from her couch instead of from inside L.A.'s Staples Center.

"Around this time last year for Grammys, I was watching with a very critical eye, very judgmentally deciding who wore the best thing and who gave the most awkward speech," she told MTV News with a smile. "And now I'm regretting all of my judgment, because surely that will be me, regardless of what happens."

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So how will the Grammy first-timer avoid landing on the worst-dressed list or taking a spill on her (hopeful) way up to the stage to collect some hardware? Well, fingers crossed.

"I'm hoping that I can pick the right thing [to wear] and not fail when I walk down the red carpet," she said. "Either way, [I'll] just enjoy myself, because it is a dream come true to be there."

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