The X-Factor graduates -- comprised of vocalists Camila Cabello, Normani Kordei Hamilton, Lauren Jauregui, Allyson Brooke Hernandez and Dinah Jane Hansen -- donned black-and-white ensembles and launched into soulful renditions of "Worth It" that segued into a pitch perfect performance of Destiny's Child's "Independent Women" and Sister Sledge's "We Are Family."
5H began their thank you speech by showering the crowd with love. "Each one of you in this room is beautiful strong and powerful beyond measures," Dinah Jane-Hansen said.
Women In Music 2015: The 50 Most Powerful Executives in the Industry
The group continued by shouting out their moms. "[We want to] thank our mothers for being a part of this journey," they said. "We're so honored to be here and be named Group of the Year."
Some of Fifth Harmony's highlights the past year include performing for President Barack Obama at the White House and hitting the Billboard Hot 100 at No. 12 with their Kid Ink-assisted jam "Worth It."
"It's our duty to be a voice for them," 5H's Normani Hamilton told Billboard earlier this month of her fans. "Being a woman, and killing it, is awesome."
Tune in to Billboard's Women in Music on Dec. 18 on Lifetime at 8:00 p.m. ET.