Celebrity Parents Usher and Jenn Goicoechea Welcome Baby Son Sire Castrello: 'Newest Addition to the Raymond Crew' Usher and Jenn Goicoechea welcomed their daughter Sovereign Bo last September By Benjamin VanHoose Benjamin VanHoose Benjamin VanHoose is an Associate Editor on the Movies team at PEOPLE. He has written about entertainment and breaking news for over five years. People Editorial Guidelines Published on October 12, 2021 12:04PM EDT Jenn Goicoechea and Usher in May. Photo: Kevin Mazur/Getty Usher's fourth baby is in the house! On Tuesday, the singer, 42, announced on Instagram that he and girlfriend Jenn Goicoechea welcomed baby boy Sire Castrello Raymond on Wednesday, Sept. 29, at 6:42 p.m. The newborn weighed 7 lbs., 13 oz., at birth. The pair welcomed daughter Sovereign Bo in September 2020, and Usher is also dad to sons Naviyd Ely, 12, and Usher V, 13, from a previous relationship. Alongside a black-and-white closeup photo of the baby boy, Usher, whose full name is Usher Raymond, wrote on Instagram, "Hi my name is Sire Castrello Raymond … I am the newest addition to the Raymond crew. I was born Sept 29 2021 at 6:42pm weighting 7lbs 13oz. Hear me roar … A.K.A Ra Ra . 👶🏽 ♎️ Gang." Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. RELATED GALLERY: Celebrity Babies Born in 2021 In May, PEOPLE confirmed that Usher and Goicoechea were expecting their second baby together. During the red carpet for the iHeartRadio Music Awards in June, which Usher hosted, Goicoechea showed off her baby bump. The singer, who kicked off his Las Vegas residency at The Colosseum in Caesars Palace over the summer, appeared on Good Morning America in July, opening up about life with his baby girl Sovereign, sharing that he is "loving being a girl dad." RELATED VIDEO: Usher Shares Rare Picture of Daughter Sovereign as He Awaits Arrival of His Fourth Baby At the time, Usher also expressed his excitement for his fourth child on the way, sharing that he and Goicoechea "can't wait" for their new addition. "I'm definitely enjoying this little baby boom of ours," he said with a laugh. "This new addition to the family has just been exciting." Still, Usher said there is one thing he would like more from his kids: to listen to his music. "I do wish that my kids listened to my music more," he said on GMA. "My second son, Naviyd, actually is the one who listens to my music more than anything. Usher, he doesn't care. Sovereign, she just likes me to sing to her."