Britney Spears: My sons are my masterpieces

Britney Spears has penned a sweet tribute to her sons to mark Mother's Day.

The 'Pretty Girls' hitmaker has praised her two children - Jayden, nine and Preston, 10, who she has with ex-husband Kevin Federline - for being her "masterpieces".

She wrote: "To Jayden and Preston; you are my masterpieces. From the day I saw the most precious eyes, I believed in miracles to the core. Such a gift God has given me, exploring in your beautiful worlds every day. I pray as a mother I teach you strength and passion to carry through the struggles in the world. Most battles will always be won on your knees. I pray you find your dreams.

"God always comes to us in tiny whispers. I pray you always find his whisper and understand the true meaning behind following your inner voice as well."

The 34-year-old singer went on to urge her two kids to "always believe" in themselves.

Writing for TIME magazine as part of their 'Letters from Mom' feature to mark Mother's Day on Sunday (08.05.16), she added: "Always believe in yourself and know anything is possible. I pray dreaming awakens your soul to limitless possibilities. I hope the most precious mysteries of life stay with you always and you are never ashamed of how bright your light truly is.

"I hope you learn praying alone is when you are most connected to God, and know you are never alone. He is with you always. I pray you laugh, love and soar through your journey of life."

Meanwhile, Britney is reportedly desperate to have more children.

A source said previously: "Everyone has told her that she does not need a man to have another child, but she thinks she does.

"Kevin is there for those boys and he is their dad. Britney's father is also like another dad to her boys. He has always been granddad and dad to them and those kids do not need another father figure in their life."