A few summers ago, a catchy song called “One Time” dominated radio stations. The young voice belonged to Justin Bieber, a name many weren’t familiar with. Today, he’s a global sensation who has millions of adoring fans swooning over his distinctive music and infamous hair.

There seems to be a stigma that Bieber’s music is meant for young ears only, as most songs are upbeat with lyrics teenyboppers can relate to.

Justin Bieber may be the whole package in little girls’ eyes, but they’re not the only ones captivated by the 18-year-old Canadian singer.

I’m 20 years old and I have an incurable case of Bieber Fever.  Hear me out, Bieber haters, because I have the facts to back it up.

When I first heard his music on the radio, I was impressed but wasn’t a fan. Only when his documentary “Never Say Never” hit theaters did I realize this Bieber kid was a big deal, especially when I learned the movie was the third-highest grossing documentary of all time.

Curiosity got the best of me and I found myself in the theater, anxious to see what all the hype was about.  My curiosity immediately transformed into awe well before the ending credits rolled.

Today, I have a low tolerance for those who dislike Bieber. They seem to tune the world out at the mention of his name and then proceed to argue that he sounds like a girl.

Bieber was only 15 when his first album dropped, so he was allowed to sound young. He was a child.

He also became the youngest solo male artist to make it to Number 1 on the Billboard 200 since 1963.

Sounding young isn’t so bad after all, is it?

On March 1, he became an adult, and that is evident in his recent music. His new single “Boyfriend” was released last month and it is clear that Bieber is definitely not a girl. His voice has done a 180 since the days of “One Time.” The lyrics are more mature and the tempo is slower.

The song’s new sound has helped him gain older listeners while keeping the young ones, which will hopefully lure some haters in unless they are too closed minded to give the new music a chance.

It’s safe to say millions of people gave it a chance as it climbed to number one on iTunes in 32 countries just two days after the release date.

Fans were heartbroken when Bieber changed his notorious haircut, which leads me to another important feature he has that tends to go unnoticed: his heart.

Instead of spending Valentine’s Day with his girlfriend, Selena Gomez, Bieber flew 6-year-old Avalanna to New York to meet him. She has an uncommon form of brain cancer, and her only wish was to marry Bieber. They didn’t tie the knot, but they spent the day playing Candyland and eating cupcakes.

Bieber always credits his success to his fans. The boy is unstoppable, but through all his success he manages to keep his heart big and his head small, and I think that says something.

Those who don’t respect Bieber as should at least respect him as a person. He’s a humble guy living his dream and making millions of fans smile, myself included.