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  Twitter: Jessica Simpson
  Jessica Simpson and fiancé Eric Johnson

Singer Jessica Simpson finally gave birth to a baby girl on May 1 in Los Angeles, Calif., 10 days after her reported due date.

Maxwell Drew Johnson, whose middle name came courtesy of Jessica's mom Tina Simpson, arrived weighing in at 9 lbs., 13 oz. and both mother and daughter are said to be doing well, according to Hollywood Life.

"Eric and I are elated to announce the birth of our baby girl, Maxwell Drew Johnson. We are grateful for all the love, support and prayers we have received. This has been the greatest experience of our lives!!" Simpson wrote on her website.

Despite speculation that the 31-year-old and her fiancée Eric Johnson were expecting twins, the couple welcomed one child, which is their first.

It is unclear whether the "With You" singer had to be induced, but she likely underwent a C-section after becoming terrified of having a natural birth, according to In Touch Magazine.

"The thought of going into labor scared the bejeezus out of her. She was so anxious, she was even breaking into cold sweats at night," a friend of Simpson previously told In Touch Magazine.

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"She desperately wanted to experience the joy of a natural birth, but decided to go with what made the most sense for her," the friend added.

Simpson was reportedly struggling to remain calm about going into labor, and tried different methods to remain peaceful.

"Jessica has no tolerance for pain. She even turned to hypnotherapy to calm her fears about it, but nothing was working!" the friend said.

Johnson, 32, reportedly helped Simpson eliminate her fears about the birth throughout her pregnancy.

"Eric is a calming force for Jessica, [he] is so excited about the birth," the friend said.

The couple, who put off having their wedding until after the birth of their baby, picked an uncommon name for their little girl.

"They tossed around a lot of names, including some wacky ones like Zinfandel, but couldn't agree on anything," a family friend said.

"They're going to call her Maxwell, Maxi for short. Maxwell is Eric's middle name, and also his beloved grandma's maiden name. Jessica wanted a name with meaning," the friend added.