Sheryl Crow takes 1-month-old son Wyatt Crow for a hike in LA’s Runyon Canyon Park on Monday, wrapped in a Moby D wrap in sage green/orient silk panel/black.

Sheryl also took baby Wyatt to a Memorial Day party later on in the day along the star-studded Billionaires Beach with celebs Jennifer Aniston, Courteney Cox and Cindy Crawford.

Here are the very first pictures of Sheryl Crow’s newly adopted 3-week-old son Wyatt Crow! The 45-year-old singer-songwriter will be raising her son at her Nashville home and expects “a whole troop” of siblings to join Wyatt soon enough.

“The day he came home (on April 30), I felt like the whole house had changed. The house felt fuller,” Crow told OK! magazine via USA Today. “You just feel like nesting and making sure he’s acclimated to the world. It is all so fascinating.”

Added Crow, “My mom would hand him to me and say, ‘Here’s your mommy.’ It was really poignant (and very startling) to hear my mom call me Mommy. It took me a while to get used to it.”

Crow also confessed to having a special “somebody” (who is not in the business) in her life but she doesn’t “feel any pressure to get married” because Wyatt will be the “deciding factor.”

(Crow was spotted on Tuesday having a hilarious bike through Runyon Canyon with her new main man near new Los Angeles mansion — see pictures below and inside.)

Sheryl and Wyatt’s OK! cover story hits newsstands on Friday.

Sheryl Crow, 45, just announced on her official website that she adopted her first child, a two-week old baby boy:

Hey Everybody, I am so excited to share with you guys that I’ve adopted a little boy ..he was born 2 weeks ago. His name is Wyatt (after my dad) Steven (after my little brother and Scooter) and we are enjoying some very private family time. Just wanted you to be the first to know. Lots of love, Sheryl.

Congrats, Sheryl! And Happy Mother’s Day!!