Michael Phelps - Lead
Credit: Tom Pennington/Getty

Michael Phelps has the cutest cheering squad at this week's U.S. Olympic swim trials. The decorated athlete's fiancée, Nicole Johnson, and their 7-week-old son Boomer were on hand in Omaha, Neb., to root for Phelps as he became the first U.S. man in history to qualify for his fifth consecutive Olympic games.

Johnson took to Instagram on Tuesday to share a photo (below) of little Boomer from the stands wearing an adorable "Team Daddy" onesie.

"#teamdaddy all day err day!! We LOVE you @m_phelps00 and we're cheering super loud for you!!" the former beauty queen wrote alongside the cute snap.

In another photo, this one shared on Boomer's personal Instagram page, mom and baby can be seen standing in front of a gigantic poster of Phelps on the arena wall.

"Mom and I are excited to go watch dad tonight!!" Boomer, aka mom, captioned the snap.

Phelps, who is already the most decorated Olympian of all time, is hoping to add to his collection of 22 medals at this year's summer games in Rio.

If his cheering squad is on hand—and we have no doubt they will be—he's bound to accomplish his goal.