Justin Bieber's mom, Pattie Mallette, is being inundated with Happy Birthday wishes Monday on Twitter for giving birth to the pop star.

Patricia Lynn Pattie Mallette was 18 years old when she gave birth to Bieber and reared Justin as a single mother, although her parents helped out in taking care of the Boyfriend singer.

Mallette turned 36 today.

Bieber, 18, was a YouTube sensation discovered by Usher and he is now one of the most popular celebrities in the world with hordes of teenage fans.

Mallette herself has over 1 million Twitter followers and in her short bio on the micro-blogging site says she is more than just Justin Bieber's mom.

Yes Justin Bieber is my son. I have many other great qualities besides being his mom haha!, she writes. No really.

Happy Birthday Pattie has been a trending topic Monday on Twitter.

Happy Birthday Pattie Mallete!!!! Your like a second mom to us beliebers and a good one too!! LOve all of us beliebers xx, wrote @JustinDrew105.

Happy Birthday Pattie , you created a talented boy :) I love you :*, said @RecklessICONiac.

Before 19 million beliebers, he had only one ;;* Happy Birthday Pattie <3, wrote @12hrs56am, referring to the name given to the legions of Bieber fans.

A Justin Bieber fan said the star has been a major inspiration in her life.

Today i have to say thank you to a beautiful woman.For bring to the world a kid that change my life.Happy birthday pattie ♥, wrote @BlackStarNavy.

Birthday wishes from a Justin Bieber fan in the United Kingdom, @KidrauhlQueenUK, were retweeted by Mallette around 1:30 a.m. EST.

Aw thanks!! Love U2, she wrote back to the fan.