460jsimpson091511_02_X17.jpgProud papa Simpson is a grandpa for the second time, and he's all a-Twitter with excitement!

Jessica Simpson’s father called the birth of baby Maxwell Drew "a miracle," after the singer announced the arrival of her first child with fiance Eric Johnson, on Tuesday.

Joe shared via Twitter:

    "Proud PaPaJoe Beautiful baby girl... What a miracle!"

The entire Simpson fam, including little sis Ashlee, were at the hospital in LA when Jess gave birth to the little girl, who weighed in at a healthy 9lb 13oz.

The proud new mom also announced the news by posting a big banner on her official website, with the caption, "Creating a family is the best thing I've done in my life, I really hope I can be half as good of a mom as my mom has been to me."