Photo Album: Jana Kramer & Daughter Jolie's Sweetest Snapshots

"Being a mom, it's the most incredible feeling in the world," Kramer tells PEOPLE of 8-week-old daughter Jolie Rae with husband Michael Caussin. "Every time I say 'my daughter,' it's such a great feeling. I've always wanted to be a mom. I'm really happy."

"We call her our 'Little Strudel,' " says Kramer. "We also call her 'Little Monkey' just because she does the cutest little monkey face. She stretches her arms up and then she'll go, 'Oooh.' It's almost like a little howl. It's so cute."

"The mom instinct just totally kicked in and you really do realize which cry is which," says Kramer. "It's the craziest thing. All of a sudden I'm like, 'I'm the mom. I got this.' "

"I sing to her a lot," says Kramer. "'Twinkle, Twinkle Little Star' is her favorite song."

"I just love when she's not crying and she's super snuggly," says Kramer. "That's my favorite thing."

"Mike is extremely hands-on," says Kramer of her husband. "I love seeing him interact with our daughter. I love him so much more even now, just seeing him being such an amazing father."