Joni Mitchell
Musician Joni Mitchell sings one of her songs, "Both Sides Now", during the filming of a television tribute to her in New York, April 6, 2000. Reuters

Update as of 1:26 a.m. EDT: Singer and songwriter Joni Mitchell, who was rushed to the hospital on Tuesday after being found unconscious in her Los Angeles house, is "awake and and in good spirits," her agent said in a Twitter post, according to BBC. The report added that the 71-year-old singer, who has been a lifelong smoker, was admitted in the intensive care unit of a local hospital.

Original story:

Singer and songwriter Joni Mitchell was hospitalized on Tuesday after a 911 call regarding an unconscious woman was made from her house in Los Angeles. Mitchell’s official Twitter account confirmed the news about the singer’s hospitalization, but added that there were no further updates on her current condition.

The 911 call reported an unconscious person, but a report from TMZ said that the singer was alert on the way to the hospital. Mitchell, who is an eight-time Grammy Award winner, is best known for her hit “Big Yellow Taxi.” In 1997, she was also inducted into the Rock and Roll Hall of Fame. According to a report from Variety, the singer’s website said that her condition was “quite serious.”

“Joni has been hospitalized. We are awaiting official word on her condition and will post it here as soon as we know,” a statement posted on Mitchell’s website, jonimitchell.com said. Though claiming to be the "official website of Joni Mitchell," there is a disclaimer saying those who run the website "have no direct line to Joni."

Canadian-born Mitchell has been a lifelong smoker, and has said earlier, according to Variety: “Six decades of smoking have robbed me of my voice.”

The singer’s last album “Shine” was released in 2007.

Her songs have been considered “confessional” and the singer has responded to it by saying: "It's an ugly term—it's 'confessional' if you don't get it; if you do get it, you see yourself in the songs," adding: "I usually use 'I' as the narrator in my songs, but not all the 'I's' are me; they're characters. It's theater," E! reported, citing an interview to Los Angeles Times.

The singer is also known for her albums released in the late '60s and '70s, including "Clouds," "Ladies of the Canyon" and "Blue," Reuters reported.