Michael Phelps may have won gold at the Summer Olympics in Rio de Janeiro, Brazil, on Monday, but it was his 3-month-old son Boomer that won our hearts. During Michael's 4x100m freestyle relay, his family - which included his mom, Debroah, and fiancée Nicole Johnson - attentively took in the match and cheered him on from the stands, while little Boomer nearly stole the show with his cute looks and Team USA-themed outfit. Throughout the week, Nicole has been taking to Instagram to document Boomer's first time in Brazil, and on Sunday, she uploaded a precious snap of him laughing, writing, "I'm ready to see some more fast swimming!! Go get em daddy!!! Go get em USA!!! #usa #rio2016." Check out even more gold-medal-worthy pics of Michael's adorable baby boy.