This year has been so good to girl group Fifth Harmony!

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Dinah Jane Hansen, Camila Cabello, Lauren Jauregui, Normani Kordei Hamilton and Ally Brooke Hernandez released their debut album, Reflection, at the beginning of this year and have since gone on to achieve mega-success, especially with their single "Worth It" that features rapper Kid Ink.

The youngest 5H member got really excited about how great this year has been on Twitter Thursday morning.

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Hansen was actually blown away by the number of views the music video for "Worth It" has received. The girl group's music video is inching closer and closer to a billion views.

"2015 isn't even over, yet we have HALF A BILLION views on Vevo," she gushed.

Out of all of their music videos, "Worth It" has resonated the most!

"This year's def. one for the books," she exclaimed, while noting she's "#blessed".

Aside from finding such massive success with "Worth It" (it did go multi-platinum), the group toured a bit in Europe, which they previously had not done and they were a special guest performance on Taylor Swift's 1989 World Tour amongst a bunch of other cool things.

So, yeah, we can totally see why 18-year-old Hansen thinks this year has been so incredible. The upcoming year is bound to be just as promising as the girl group wraps up the finishing touches on their sophomore album.

Tags: fifth harmony Dinah Jane Hansen