Plastic surgeon refused to treat Whitney Houston weeks before her death, report says

Whitney Houston was refused plastic surgery when she failed a routine medical examination -- just two weeks before her death, RadarOnline reported.

The plastic surgeon, Dr. Marc Mani, declined to perform a facelift on the "I Will Always Love You" singer when she failed a medical check for her heart, lung and liver, a source told the gossip site.

"She was concerned about her appearance and wanted a facelift," the source said.

Houston was found dead in a bathtub at the Beverly Hilton hotel last Saturday.

The surgeon refused to comment on the claims citing federal medical privacy laws.

The cause of death is yet to be determined pending toxicology tests but preliminary results revealed sedatives were found in the star's system. Houston's funeral takes place Saturday.

Prescription pill bottles of Xanax, Lorazepam, Valium and others were also said to be found by detectives.