Gwen Stefani celebrated her son Zuma Nesta Rock Rossdale turning 18 with a heartfelt Instagram tribute on August 21, featuring home footage spanning his childhood, including him singing and playing guitar, set to his own guitar and vocals covering Zach Bryan's "Dawn."

"Happiest 18th birthday Zuma i cannot believe u are 18 today!" the No Doubt frontwoman wrote, adding, "We love u soooo much Zuma." Zuma is Stefani's second son with Bush frontman Gavin Rossdale; the former couple, who split in 2015, also share sons Kingston, 20, and Apollo, 12.