Mother's Day 2012 (May 13) marks Beyonce's first time celebrating her moment as a new mom to daughter Blue Ivy Carter. Since her birth on Jan. 7, the R&B songstress has relied on the beliefs and values her own mother, Tina Knowles instilled in her to raise Blue Ivy. To show appreciation to her mom, Beyonce penned a letter to her just in time for Mother's Day.

In the letter, which the 30-year-old "Love on Top" singer revealed on her website, Tina Knowles receives heartwarming words from her eldest child. "Everything I am is because of you," Beyonce writes to her mother at the opening of the note.

Read the rest of Beyonce's sentiments towards Tina Knowles below.

Beyonce.com