Kelly Osbourne Posts Mother's Day Tribute Online

Kelly Osbourne has penned a Mother's Day tribute to her mom Sharon and posted it online.

The Papa Don't Preach singer took off to Las Vegas to spend America's Mother's Day with the rock matriarch - and during the quality time, she posted her song I Love You More Than Life Itself on YouTube.com.

The song, which opens with the lyrics, "You never said that you were perfect/But you always are to me/Loving you was always worth it/Because you've seen so much in me", is accompanied by images of the Osbourne mother and daughter together.