On the heels of sub par and canceled live performances, Whitney Houston now has a much more serious low to battle on her hands. According to a National Enquirer report, doctors informed the singer that she is suffering from early stages of emphysema, which would be an obvious culprit to Houston's poorly received vocal performances as of late.

"She's developed emphysema -- and her doctors are warning her she'll die a horrible death," a friend of the singer told the Enquirer.

Sound too "horrible" to be true? You guessed right, champ. After staying silent most of the day, Whitney's rep Kristen Foster responded, telling E! News the Enquirer's story is "completely untrue."