Nate Ruess brought home some serious hardware home on Sunday night. (Crishna Simmons/flickr)

Is fun.'s win an upset? Maybe. Their win will probably be met with mixed reactions in the coming days.

Many people actually expected Frank Ocean to take this one home. Out of all the albums released by this year's nominees, "channel ORANGE" received the most positive reviews from critics.

Ocean also made a splash by coming out in the largely homophobic hip hop and rap community—something that could have easily destroyed his career before it even began. 

ALSO SEE: Grammy's 2013 Best New Artist Nominees - Will Frank Ocean Take It?

Even so, Ocean belongs to the less mainstream genres of R&B and soul whereas fun. is a pop artist through and through.

The Grammy for Best New Artist has been received with mixed reactions by the public over the past few years, making some wonder if the Grammys are still relevant outside of the music industry.

Musicians from less popular genres have won over more well known and more commercially successful artists. Last year, indie folk band Bon Iver beat out Nicki Minaj and Skrillex. In 2011, jazz singer Esperanza Spalding won over Drake, Florence + The Machine, Justin Bieber, and Mumford & Sons.

After the past few years of obscure artists winning Grammys in huge categories like Best New Artist and Album of the Year, should the audience have expected the Academy to pick the mainstream choice?

It wasn't a bad night for Frank Ocean though, as he took home two Grammys for Best Urban Contemporary Album for "channel ORANGE" and Best Rap/Sung Collaboration for his song "No Church In the Wild" with Jay-Z, Kanye West, and The-Dream.

Fun. also won Song of the Year for their hugely popular single "We Are Young".

Read more of NT's Grammys coverage here.

Reach Staff Reporter Michelle Tiu here or follow her on Twitter.