Fifth Harmony's Lauren Jauregui should be celebrating the release of her group's debut album, but unfortunately she just lost a loved one.

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The 5H singer revealed on Twitter Wednesday night, "Yesterday I lost a large piece of my world."

Tuesday night Jauregui's grandmother Angelica passed away, which her dad revealed on Twitter Wednesday afternoon, "My mother-in-law passed away. Lauren's Grandma.Please keep us in your prayers".

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Jauregui shared a photo of herself with her grandmother on Instagram then and revealed, "Thank you for giving me your unconditional love and wisdom throughout my life, listening to me and making me feel like I was heard and that my feelings were always valid."

To further honor her grandmother, Jauregui said, "You will always be in my heart. Thank you for 80 years of your essence, you will be missed greatly but I know that God is happy that you're home and safe now and I also know you will always be with me. I love you Abuelita".

Jauregui's bandmate Ally Brooke Hernandez tweeted her heartfelt condolences. "I love you more than you know and we are ALL praying for you and your family. My heart is with you," Hernandez said to Jauregui.

She also tweeted John 1:5: "The light shines in the darkness, and the darkness can never extinguish it".

The hashtags "#RIPAngelica," "#WeAreHereForYouLauren" and "#staystrongjaureguifamily" trended thanks to Harmonizers showing their love to Jauregui in her time of need.

Jauregui thanked her fans on Thursday for their outpour of love.

"Thank you to everyone for your kind words. I see it all and I am grateful and blessed to receive so much love from you all," she said.