New Mom Katharine McPhee Shares First Photo with Her Baby Boy!

A birthday calls for a celebration outside the house. This led Katharine McPhee to ring in her 37th birthday by stepping outside with her 71-year-old husband, David Foster, and their newborn son Rennie on March 25. The family of three ventured out to Beverly Hills for brunch, where they were all pictured together for the very first time in public! You can see the first photos of Katharine and David with their son in public, here.

Katharine McPhee is so enjoying all her time with her newborn that nothing else matters.The 36-year-old singer and actress welcomed her first child, son Rennie, with husband David Foster last month, and couldn't be happier.

Katharine McPhee is opening up about her life as a new mom!

David Foster had some feelings after Katharine McPhee shared their newborn son's name. The same week that McPhee revealed she and her husband named their baby boy Rennie David Foster, the Country Comfort star shared why doing so «annoyed» her husband.McPhee, who gave birth in February, spilled the beans while on the show, after host Hoda Kotb asked her about her son's moniker.«My husband was kind of annoyed.

Katharine McPhee, 36, admitted husband David Foster, 71, wasn’t so thrilled she spilled tea on their newborn son’s name! “You know, my husband was kind of annoyed…I’m in trouble, but hopefully my husband won’t be too mad at me!” the American Idolalum revealed on SiriusXM’s The Jess Cagle Show on Thursday, Mar. 18.

Katharine McPhee is a new mom after welcoming her son Rennie into the world last month and she revealed she did something that annoyed husband David Foster this week.

 Katharine McPhee  was excited to share the name of her first born child, Rennie David Foster, with the world. Her husband, David Foster, on the other hand, wasn’t as happy with her decision.

Katharine McPhee is sharing the special meaning behind her and David Foster,'s son's name. In an interview airing Friday on, the star revealed that the couple chose an «old family name.»«OK, well, his name, we haven't said anything, my husband hopefully won't kill me for saying it, but his name is Rennie David Foster,» she told Hoda Kotb and Jenna Bush Hager during the virtual chat.

Spilling the beans! Katharine McPhee joked on Wednesday, March 17, that her husband, David Foster, would “kill” her for sharing their baby boy’s name.

Katharine McPhee is loving motherhood so far. On Saturday, McPhee, 36, shared a sweet picture of her and her newborn baby in an Instagram Story.

Katharine McPhee is embracing life as a mom. The 36-year-old singer shared the first photo of her newborn son while out for a walk on Saturday.

Katharine McPhee is embracing life as a mom.

Katharine McPhee is loving being a mom! Less than two weeks after the American Idolalum, 36, welcomed her first child with husband David Foster, 71, she took to her Instagram Story to share her first photo with the adorable tot. “Just in case you were wondering… I love being a mommy!” the Broadway star captioned the photo, adding two crying emojis.

Katharine McPhee had a major concern throughout her pregnancy. The 36-year-old actress was interviewed on the latest episode of , and revealed that she feared a relapse from an eating disorder while pregnant.

Katharine McPhee has just welcomed a bouncy baby boy, but her pregnancy wasn’t without struggles. The star - who has become a first-time mum with her husband, David Foster - has been open about her past battles with eating disorders, and has now bravely revealed how she feared her pregnancy would trigger a relapse. MORE: Princess Eugenie's wedding dress designer also created Katharine McPhee'sSpeaking on an episode of Dr.