Mandy Moore took to Instagram to cheer on Hilary Duff as the actress closed out her sold-out Small Rooms, Big Nerves tour in Los Angeles.The Someday We'll Know songstress recently shared a heartfelt praise to her friend and Lizzie McGuire star on her Stories, following her final show at The Wiltern last Jan. 29."Broke my brick time to say that my bud is a sensational icon queen giving us all what we needed. You are forever a superstar, @hilaryduff!!!!"In another post, Mandy Moore gushed about Hilary Duff's live performance of Mature at the packed venue."My fav song!"The track is the lead and pre-release single of her album, luck... or something, scheduled to drop on Feb. 20.Aside from Mature, Hilary Duff also pre-released another track, Roommates, off the forthcoming record on Jan. 15.While some titles are yet to be revealed, the Raise Your Voice actress's 2026 album has been confirmed to have 11 tracks in total, which include the aforementioned singles.Apart from the Los Angeles leg of her Small Rooms, Big Nerves Tour, Hilary Duff also performed shows in New York City, London, and Toronto. The shows arrive ahead of her approaching Las Vegas residency.Also Read: What did Hilary Duff reveal about her long-awaited return to music?Mandy Moore and Hilary Duff: A glimpse into their friendshipMeanwhile, Mandy Moore and Hilary Duff have been friends for over two decades, which started in the 2000s during the early years of their careers.Interestingly, their connection deepened after they became parents, and they currently belong to the same "mom group," where they share their parenting experiences.The two stars were also part of the infamous Vanity Fair's Young Hollywood in 2003, which also included their fellow cohorts Lindsay Lohan, Amanda Bynes, and the Olsen twins.Hilary Duff looked back at the experience in 2022, recalling Mandy Moore and the experience."I remember being like, 'This is cool I was included in this,' but no, this was a very high stress, anxiety-inducing day. Mandy and I are great friends now, so this is very funny."One major proof of their friendship was when the What Dreams Are Made Of hitmaker and her producer husband, Matthew Koma, offered Mandy Moore and her family a place to stay after their home was devastated by the LA wildfires. According to her husband, Taylor Goldsmith's brother, Griffin:"They are currently housing my brother's family. They've taken care of my entire family from the moment this began. I will never be able to thank them adequately. This is the kindest act any human could do for another."Moore's brother-in-law also revealed that Duff and Koma launched a GoFundMe for his own family, as their home was also ruined by the fires."They are the most beautiful, selfless people we’ve ever known."Also Read: "It terrifies me, but thrills me": Mandy Moore on the one dream she still wants to chase after 20 years in Hollywood