Turning 50 in 2012

The reigning king of Jordan, above right with British Prime Minister David Cameron in June, turned 50 this year.  (Facundo Arrizabalaga / EPA)

The Rolling Stones played their first show at London’s Marquee Club in 1962. Photos  (Michael Ochs Archives / Getty Images)

Over the course of Jim Carrey’s career, the actor and comedian has alternated between commercial comedy projects (“Ace Ventura: Pet Detective,” “Dumb and Dumber”) and acclaimed dramatic roles (“The Truman Show,” “Eternal Sunshine of the Spotless Mind”). Photos  (Andrew H. Walker / Getty Images)

The 50-year-old Guns N’ Roses co-founder most recently rejected the induction of the band to the Rock and Roll Hall of Fame. Story | Photos: Axl Rose’s famous feuds  (Kevin P. Casey / For The Times)

The big-box super chains Wal-Mart and Target appear to be imitating each other this holiday season.  (Wally Skalij / Los Angeles Times; Justin Sullivan / Getty Images)

Best known for his role as Roger Sterling on AMC’s “Mad Men,” John Slattery turns 50 on Aug. 13. Interview  (Carolyn Cole / Los Angeles Times)

The “Ghost” actress -- former wife of Bruce Willis and eventually-to-be-ex of Ashton Kutcher -- turns 50 in November.  (Jason Kempin / Getty Images)

“The Daily Show” host and political satirist turns 50 in November.  (Allen J. Schaben / Los Angeles Times)

The ‘80s heartthrob and Bon Jovi lead singer was more recently seen in the large ensemble production of “New Year’s Eve.”  (Jamie McCarthy / Getty Images)