Harry Styles pens note to fans on One Direction's Anniversary

Dear One Direction fans: Harry Styles wants you to know something.

The hunky singer took to Twitter today to celebrate one very special milestone—#5YearsofOneDirection. Yep, believe it or not, it's been five years since Simon Cowell grouped Harry, Louis TomlinsonNiall Horan, Liam Payne and Zayn Maliktogether to create the ultimate boy band of our time.

Although things have changed in recent months (let's try not to make this awkward, guys), 1D continues to be a major musical force. And, Styles knows that wouldn't have been the case if it weren't for the band's loyal and passionate fan base, who continue to rock with them each year.

While it's definitely a happy time for the group, fans can't help but wonder what's next for the band. With Zayn having left the band, and Tomlinson expecting a child, there's question whether or not 1D is going to continue making music and tour, or if they'll take some time off.

If you ask Cowell, he's thinking the latter.

"In terms of the band, they've got enough hits now they can take some time off and do some other stuff they want to do," he explained to The Sun. "Then I hope they'll have a little bit of time apart and want to get back together again. It's a fun job, but it's absolutely their decision."

Well, regardless of what the boys end up doing, their fans will be ready to root them on along the way.