Ashlee Simpson and Evan Ross released the first photo of their baby girl Jagger Snow Ross! The proud parents, who welcomed their first child together in July, took to Twitter on Thursday to share a cute photo of Ross holding the baby girl while Simpson leaned in close to her family.

"Jagger Snow Ross!! we love her so much. She's everything!best daddy in the world @realevanross," Simpson captioned her photo. 

Ross recently opened up about being a father, telling Entertainment Tonight he's "so in love" with both Jagger Snow and Simpson. "The biggest thing in this world is in love. I'm so in love," the 27-year-old said. "I love my daughter, I love my wife. She's given me the best gift in the world. I'm very lucky." 

The "Hunger Games" actor went on to say that being a father has been "beyond life-changing" and his baby girl was "the most beautiful thing you could ever think of." 

"I'm proud to be a dad, and I'm going to make sure she knows she's loved," Ross said.

Besides caring for the newborn and his step-son Bronx Mowgli Wentz, Simpson’s 6-year-old with ex-husband Pete Wentz, Ross revealed that he and the 30-year-old singer collaborated on a song called “Permission Love.”

“We’ve been working on music for a while,” Ross said. “She’s so talented; whatever she can give me I’ll take.”

As previously reported, Ross and Simpson revealed their daughter's unique name on Twitter last month, writing, “ We are overjoyed about the birth of our precious baby girl, Jagger Snow Ross, July 30 2015 – Ashlee & Evan.”

A source close to Ross and Simpson told E! Online recently the pair were really enjoying their time with their new baby, and both of their families have been extremely supportive. “[Evan] would do anything for Ashlee and now this baby girl,” the source said. “Ashlee is doing great and can’t wait to get home to be with her family.”