Mandy Moore isn't letting any mom group drama keep her from giving her friend Hilary Duff her flowers. "Broke my brick time to say that my bud is a sensational icon queen, giving us all what we needed," Moore, 41, wrote via her Instagram Stories, sharing footage from Duff's Thursday, January 29, intimate concert in Los Angeles. "You are forever a superstar!" Moore later pointed out in follow-up footage that Duff's new single "Mature" is her favorite song. "@MatthewKoma [and] @TaylorDawesGoldsmith grooving out," she wrote, alongside a video of the two women's husbands dancing in the crowd. Hilary Duff and Mandy Moore's Friendship Timeline Through the Years While Moore and Duff, 38, both came of age in Hollywood in the early 2000s, they became especially close after they each welcomed babies in 2021. (Their respective husbands, Goldsmith and Koma, also know one another through the indie music scene.) "Hilary is the coolest and she is a super-mom. She and Matt have become really close friends with my husband and I," Moore previously told InStyle in 2021. "They have a kid who's six weeks younger than [my son] Gus. And so, we had babies at the same time." Moore, who shares three children with her husband, subsequently received an invitation from Duff to attend a joint mommy-and-me music class. (Duff and Koma, 38, share three daughters, while the Younger alum is also mom of son Luca, 14, from a past relationship.) Courtesy of Mandy Moore/ Instagram "[Hilary], being the super-mom that she is, formed a cool mom club," Moore recalled to the outlet. "Somehow, I got invited into it, and it's the best. I've made so many wonderful friends. We all just gathered earlier this week and had dinner and we have baby classes together and it's incredible. I'm very, very grateful to have those resources and just incredible women to be able to lean on. We're all kind of going through this chapter of our lives together." Their mother's group, which also included Ashley Tisdale and Meghan Trainor, went viral in early January. Tisdale, 40, published an essay in New York Magazine's The Cut titled, "Breaking Up With My Toxic Mom Group" that was presumed to be about Duff and Moore's squad. (Tisdale did not publicly name her former friends in the entirety of the profile.) "They all feel blindsided and hurt by Ashley speaking out the way she did," a source close to Duff and Moore exclusively told Us Weekly earlier this month. "From their perspective, they believed the group was supportive and coming from a good place, and they never thought there was any bad intent behind how things played out." Mandy Moore Talks 'Mourning' Changing Friendships Amid Ashley Tisdale Drama The insider added, "The moms insist there was no 'mean girl' behavior and say they were genuinely trying to be there for one another during a really vulnerable time in all of their lives." While none of the stars have further publicly reacted to the bombshell Cut testimony, Tisdale has since been spotted bonding with Hilary's older sister, Haylie Duff. Hilary and Haylie, 40, have reportedly been estranged since 2024, which fans even speculated inspired Hilary's song "We Don't Talk." "Don't know when it happened / Not even sure what it was about," Hilary sings. "'Cause we come from the same home, same blood. / People ask me how you're doing / I wanna say amazing, but the truth is that I don't know / What I always end up saying is how ... We don't talk, we don't talk about it / We don't talk about anything anymore."