By Lara Walsh
Updated Jun 20, 2016 @ 8:29 am
Rob Kim/Getty

This Father's Day, Kelly Clarkson shared her love for the two very special men in her life with her fans. The singer took to Twitter on Sunday to post a sweet photo of her husband, Brandon Blackstock, cradling their two kids: daughter River Rose, 2, and 2-month-old son Remington Alexander.

"Happy Father's Day @BBlackstock #PieceByPiece Thnx 4 being such a great dad 2 all 4 of our kiddos! #sexydaddyalert," the proud mom captioned the shot, referencing the couple's two kids as well as Blackstock's two kids from his previous marriage.

While the Father's Day shoutout to Blackstock is adorable, we can't take our eyes away from the real focus of the photo—tiny Remington Alexander! While the couple's daughter River Rose has been all over the 33-year-old singer's Twitter feed, the snap is one of only a handful that Clarkson has shared of her newborn son since she gave birth April 12.

Judging by River Rose's frequent appearances, we're expecting many cute shots of Remington in the future! The "Since U Been Gone" hitmaker recently tweeted a sweet photo of her daughter ecstatically clutching a Disney princess book on her birthday.

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"Happy Birthday to my little one. She is very excited about her princess book ha! #RiverRose #TerribleTwos," Clarkson captioned the adorable picture.