From left: Paris Jackson, 13, LaToya Ja

From left: Paris Jackson, 13, LaToya Jackson, Prince Jackson, 14, and Blanket Jackson, 9, attend a ceremony to honor their father and brother, the late King of Pop Michael Jackson, at Children's Hospital in Los Angeles, California August 8, 2011. Michael Jackson's three children presented the hospital with a gift of 13 pieces of original art created and signed by the late King of Pop. AFP PHOTO / Robyn Beck (Photo credit should read ROBYN BECK/AFP/Getty Images)

Children's Hospital Los Angeles Receives Michael Jackson Artwork Donation

LOS ANGELES, CA - AUGUST 08: Paris Jackson (L) and LaToya Jackson (R) attend Children's Hospital Los Angeles Receives Michael Jackson Artwork Donation ceremony on August 8, 2011 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)

Children's Hospital Los Angeles Receives Michael Jackson Artwork Donation

LOS ANGELES, CA - AUGUST 08: Paris Jackson (L) and LaToya Jackson (R) attend Children's Hospital Los Angeles Receives Michael Jackson Artwork Donation ceremony on August 8, 2011 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)

Children's Hospital Los Angeles Receives Michael Jackson Artwork Donation

LOS ANGELES, CA - AUGUST 08: (L-R) Michael Jackson's kids Paris Jackson, Prince Jackson and Blanket Jackson and Latoya Jackson ttend Children's Hospital Los Angeles Receives Michael Jackson Artwork Donation ceremony on August 8, 2011 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)

Children's Hospital Los Angeles Receives Michael Jackson Artwork Donation

LOS ANGELES, CA - AUGUST 08: Paris Jackson (L), Mayor of Los Angeles Antonio Villaraigosa (C) and Blanket Jackson (R) attend Children's Hospital Los Angeles Receives Michael Jackson Artwork Donation ceremony on August 8, 2011 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)

Michael Jackson's son Prince, 14, and da

Michael Jackson's son Prince, 14, and daughter Paris, 13, attend a ceremony honoring Michael Jackson at Children's Hospital in Los Angeles, California August 8, 2011. Michael Jackson's three children and mother presented the hospital with a gift of 13 pieces of original art created and signed by the late King of Pop. AFP PHOTO / Robyn Beck (Photo credit should read ROBYN BECK/AFP/Getty Images)

Children's Hospital Los Angeles Receives Michael Jackson Artwork Donation

LOS ANGELES, CA - AUGUST 08: Michael Jackson's Kids Prince Jackson and Paris Jackson attend Children's Hospital Los Angeles Receives Michael Jackson Artwork Donation ceremony on August 8, 2011 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)

LaToya Jackson (C) is flanked by Michael

LaToya Jackson (C) is flanked by Michael Jackson's two oldest children, Paris, 13, (L) and Prince,14, at a ceremony honoring their brother and father at Childrens Hospital in Los Angeles, California August 8, 2011. Michael Jackson's three children and mother presented the hospital with a gift of 13 pieces of original art created and signed by the late King of Pop. AFP PHOTO / Robyn Beck (Photo credit should read ROBYN BECK/AFP/Getty Images)

Michael Jackson's daughter Paris attends

Michael Jackson's daughter Paris attends a ceremony honoring her father at Childrens Hospital in Los Angeles, California August 8, 2011. Michael Jackson's three children and mother presented the hospital with a gift of 13 pieces of original art created and signed by the late King of Pop. AFP PHOTO / Robyn Beck (Photo credit should read ROBYN BECK/AFP/Getty Images)

Prince Jackson (L), Paris Jackson (R) an

Prince Jackson (L), Paris Jackson (R) and Blanket Jackson (front) attend a ceremony to honor their father and brother, the late King of Pop Michael Jackson, at Children's Hospital in Los Angeles, California August 8, 2011. Michael Jackson's three children presented the hospital with a gift of 13 pieces of original art created and signed by the late King of Pop. AFP PHOTO / Robyn Beck (Photo credit should read ROBYN BECK/AFP/Getty Images)