'Dancing with the Stars' alum Lindsay Arnold welcomes baby boy, third child with husband Samuel Cusick

Lindsay Arnold has welcomed her third child, a baby boy, with husband Samuel Cusick. The former 'Dancing with the Stars' professional, 32, announced the happy news on Thursday, June 11, on Instagram, sharing photos of herself smiling while holding her newborn."Baby boy is here and we are so grateful and so in love," Arnold captioned the post, adding a hashtag indicating she had a c-section birth. The couple are already parents to daughters Sage Jill, 4, and June Cusick, 2.Since announcing her third pregnancy in November 2025, Arnold has been open about her journey on social media. On April 22, just weeks before giving birth, she shared a video on TikTok, bringing followers along as she sorted through a closet full of baby clothes from her two daughters to see what could be used for her baby boy."Raise your hand if you are going to be a first-time boy mom in less than seven weeks and you have absolutely nothing prepared as far as boy clothing goes," she said in the video. "Yup, that's me."During the video, Arnold also revealed that this baby would most likely be their last. "So, this is most likely our last baby, which means anything that I don't feel like I want to hold onto, we will be donating," she said.Arnold shared the pregnancy news with a sweet post on Instagram back in November 2025. "BABY CUSICK number 3 IS ON THE WAY. We could not feel more blessed, grateful, and excited. We love you so much already, baby and we can't wait to meet you," she wrote at the time.Earlier this year, Arnold spoke with PEOPLE about her experience as a mother, saying she had been loving watching her daughters grow and learn every day. "It's truly an honour that I get to guide them and watch them, and experience their journey of becoming who they're meant to be," she said.Arnold is best known for her time as a professional dancer on 'Dancing with the Stars', where she competed for multiple seasons and won the competition with partner Jordan Fisher in Season 25. Since stepping back from the show, she has built a significant social media presence as a lifestyle influencer, sharing updates on fitness, family life and motherhood with her followers.