Fifth Harmony's debut album drops in a little more than a week!

Fifth Harmony Collaborating With Kid Ink, Tyga & Meghan Trainor On Their Debut Album & Harmonizers React

Hollywire chatted with Ally Brooke Hernandez all about Reflection at Meghan Trainor's album release party and uploaded the video to their YouTube account last Thursday.

The girl group's much-anticipated debut album features Trainor on a track called Brave Honest Beautiful and Hernandez told Hollywire what it was like working with the All About That Bass singer. 

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"She's been really supportive of us," Hernandez shared before adding, "We were fortunate enough to work with her and she's so sweet and so smart. That girl is so incredibly talented!"

Hernandez also dished on what studio time with Trainor was like.

"It was so much fun! It was awesome! She has such a great, big personality and she's just lots of fun and very laidback and chill so you can just be yourself and joke around," Hernandez revealed.

Hernandez shared she and Dinah Jane Hansen, Normani Kordei Hamilton, Lauren Jauregui and Camila Cabello put "blood, sweat and tears" into Reflection.

She is really proud of the messages in the songs too. She said, "There's some vulnerability on it. Everlasting Love is actually one of my favorite songs and I know it's one of the girls' as well 'cause it's very throwback and really '90s-esque. Destiny's Child-esque, I would say."