Ashlee Simpson & Evan Ross Welcome Baby Girl! Diana Ross' Granddaughter Named Jagger Snow

Evan Ross is a dad! MStars News has learned that the son of legendary singer Diana Ross welcomed his first child, a baby girl, with his wife Ashlee Simpson. The couple named their new baby, Jagger Snow Ross.

According to US Magazine, baby Jagger Snow was born on Thursday, July 30, and joins big brother, Bronx. The 6-year-old is the son of Ashlee's former husband, Pete Wentz.

Both Ashlee and Evan announced the birth of their daughter via Instagram with a message that read:

"We are overjoyed about the birth of our precious baby girl Jagger Snow Ross."

 @realevanross I love you #JaggerSnowRoss we love you

A photo posted by @ashleesimpsonross on Jul 31, 2015 at 8:14pm PDT

Before telling the world that she was expecting another child, Ashlee told her son that he was going to have another sibling, and this time that he'd get a little sister. "I told him pretty early on. He wanted to have a sister, so he’s really excited! He’s got a little brother. Now he’s going to have a little sister!"

MStars News previously revealed photos of Simpson and Ross' wedding day. The couple tied the knot back in 2014 at Evan's mother's Greenwich, Connecticut estate last August. Evan definitely shocked everyone when he showed off how many groomsmen he had in his wedding party. There were a total of 18!

As for fatherhood, Evan revealed that he was ready and excited.

"I can't wait. We got the nursery ready, my wife is the best." Evan previously said during his appearance on The Boris and Nicole Show. When it came to revealing his daughter's name, Evan told the host's that no one knew Jagger's name before she was born. He also noted that he wanted to tell his mother, Diana her granddaughter's name, but she wanted to wait until baby Jagger was born to know what her name was.

"The only person I wanted to tell the name to was my mom, but she wouldn't let me tell her so. She was like, 'that's for you to have.'"

Simpson's ex, Fall Out Boy rocker Wentz welcomed another son named, Saint Lazslo with girlfriend Meagan Camper back in 2014.