For one brief moment, these famous figures gave their fans and followers a big scare. See which potentially fatal circumstances nearly caused these stars to fall.

Eminem
The award-winning rapper struggled with drug addiction for years and nearly overdosed in 2007
Kanye West
In October 2002, the rapper-producer was involved in a car crash after leaving a late-night L.A. recording session.
Gabrielle Giffords
On Jan. 8, a gunman attempted to assassinate U.S. Rep. Gabrielle Giffords, D.-Ariz., who is now on the road to recovery.
50 Cent
In May 2000, the platinum-selling rapper fell victim to violence outside his grandmother's home
Travis Barker
In September 2008, the pop-punk drummer was listed in critical condition after a plane crash.
Morgan Freeman
Rescuers had to use the Jaws of Life to rescue the distinguished actor after a flip-over car crash in 2008.
Serena Williams
On March 2, the tennis star underwent emergency treatment for a blood clot.
Gary Busey
On Dec. 4, 1988, the Oscar-winning actor was severely injured in a motorcycle accident.
Sharon Stone
In 2001, the actress's severe headaches revealed something more serious once she was rushed to the emergency room.
Erik Estrada
While filming a stunt for his '70s TV show, Estrada was thrown from, then crushed by, a motorcycle, sustaining multiple injuries.
Chevy Chase
Chase was injured in a freak accident that seemed ripped from the plot of the 1981 movie he was filming.
Ozzy Osbourne
Many know about the aging rocker battling his past demons. But in 2003, he faced a different kind of threat to his livelihood.
Rachel Bilson
As a teen, the actress was involved in a head-on car collision, which left her unconscious for days.
Source:Specials

Federal prosecutors say they will file new murder charges against Jared Loughner, the 22-year-old college dropout held in the Tucson massacre.

Dennis Burke, the U.S. attorney for Arizona, last week asked a judge to drop earlier charges in the slayings of U.S. District Judge John Roll and congressional aide Gabriel Zimmerman Jan 8.

Spokesman Robbie Sherwood told the Tucson Sentinel it was a "procedural matter" and the counts will be refiled before a March 9 status conference on the case.

Loughner also is charged with four other killings, the attempted assassination of U.S. Rep. Gabrielle Giffords, D-Ariz., and the wounding of a dozen other people in a shooting spree at a constituents gathering outside a Tucson supermarket.

Federal jurisdiction in the case derives from the killing or attempted killing of federal judges, members of Congress and their aides in the course of their duties.

The two murder charges could lead prosecutors to seek the death penalty. The U.S. attorney's office in Phoenix has said prosecutors are taking their time with the murder charges since they may involve capital punishment.
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