UPDATE #2: News outlets are now saying that Tom Petty is still alive, after reports earlier in the day on Monday indicated that the legendary musician had died.

According to TMZ, Petty's family had taken him off of life support at a California hospital on Monday, following the singer's do not resuscitate order, and he was not expected to live throughout the day. Several outlets, including CBS News and Variety, later reported that the singer had died, but then reversed those claims after the Los Angeles Police Department denied it had confirmed the singer's passing.

Now, an Instagram account that reportedly belongs to Petty's daughter, Annakim Violette, is also stating that the singer is still alive. The photos posted by the account indicate that Annakim is at Petty's bedside now, and she has been sharing lots of memories of her father. She's also railed against the premature reports of her father's death.

We'll provide further updates on Petty's situation as it becomes available. Here's hoping for the best for the singer and his family.

UPDATE #1: There are conflicting reports about whether or not Tom Petty has actually passed away.

While TMZ was the first to report that Petty suffered a heart attack and was taken off of life support, the site is now saying that news reports about Petty's death are inaccurate. According to the site, an LAPD source reportedly told CBS News that Petty had passed away, but the LAPD is now refuting that statement. According to TMZ, Petty is still alive, but "is not expected to live much longer."

Variety, however, says a source has confirmed Petty's passing, and is sticking with its original story. We'll update this post as more information becomes available. Our original report is below.

ORIGINAL REPORT:

Tom Petty, the legendary musician whose sound helped define the classic rock genre, and who lent his tunes to countless film and TV soundtracks, has died. He was 66.

TMZ was the first to report that Petty was rushed to a local hospital on Sunday night after suffering a heart attack at his Malibu home. He was later pulled off of life support, and died on Monday afternoon.

Petty, a Florida native, rose to fame in the '70s with his band The Heartbreakers, and scored numerous hits with and without the group, including "An American Girl," "Free Fallin'," and "I Won't Back Down," to name just a few. He was inducted into the Rock and Roll Hall of Fame in 2002, and was the subject of the documentary "Runnin' Down a Dream" in 2007, which was directed by Oscar nominee Peter Bogdanovich.

Petty was also a member of the supergroup The Traveling Wilburys, which included fellow legends George Harrison, Bob Dylan, Roy Orbison, and Jeff Lynne. He had just come off of a 40th anniversary tour with The Heartbreakers, which wrapped on September 25.

His music also appeared in numerous films and television shows, scoring key moments in classics like "Jerry Maguire" and "The Silence of the Lambs," and TV favorites like "The Sopranos" and "Parks and Recreation." Petty also acted in a handful of projects, including playing himself "It's Garry Shandling's Show" and "The Larry Sanders Show," and voicing Lucky Kleinschmidt on "King of the Hill."

Petty is survived by his wife, Dana York Petty, and two daughters from his first marriage.