Today's Justin Bieber's 18th birthday and, in the wake of his newfound legality, we decided to look back at 18 heartthrobs of yore to see whose path the Biebs should follow. This round-up is by no means exhaustive -- we thought we'd honor the birthday fella by selecting an even 18 -- but it is inclusive! Whether you're a pre-teen of the '50s, '60s, '70s, '80s, '90s, or '00s, take a trip down Tiger Beat memory lane with us.Paul Anka:
Highlights: The '50s teen crooner found major success with hits like "Lonely Boy," "Puppy Love" and "Put Your Head on My Shoulder" and was able to make a fairly smooth transition into an adult performer. In fact, the 70-year-old is still touring the country singing, and you can catch him tonight at the Chumash Casino Event Center in California. How 'bout that!Eddie Fisher:
Highlights: The recently deceased Fisher was famous first as a teen idol and then for his marriage to Debbie Reynolds. He made real headlines, however, when he ditched Debbie for Elizabeth Taylor, à la Brangelina in the '60s. Struggles with drugs and alcohol followed and Fisher fell off of the pop charts. He resurfaced in later years when daughter Carrie Fisher sold her memoirs and famously reconciled with him. Ricky Nelson:
Highlights: Rising to fame in The Adventures of Ozzie & Harriet, a show largely based on his own family, Nelson became a pop star but sadly died in 1985 in a plane crash. In 1987, he was posthumously inducted into the Rock and Roll Hall of Fame. David Cassidy:
Highlights: Cassidy was every '70s girl's dream as Keith Partridge on The Partridge Family. Following the end of the show, Cassidy had additional TV roles, though none as high profile. Today Cassidy lives in Florida with his third wife and continues to tour as a singer.Donny Osmond:
Highlights: The breakout of The Osmond Brothers, Donny went on to host a variety show with his sister, Marie, called Donny and Marie. By the late '70s, his career was waning but a decade later, he recorded more music that had fair-to-middling success. Osmond has performed on Broadway and hosted the game show Pyramid.Davy Jones:
Highlights: The Monkees frontman who, sadly, passed away yesterday, made tons of girls swoon. With hits like "Girl," "Daydream Believer" and "Last Train to Clarksville," the Monkees proved they were more than just a manufactured boy band. Jones continued to sing and act even once the Monkees disbanded and lived a successful, and by all accounts happy, life.Leif Garrett:
Highlights: Born to showbiz parents, Garrett acted in movies such as Bob & Carol & Ted & Alice and Walking Tall as a kid but made his real mark on the Tiger Beat set with his music career. At 14, however, Garrett started experimenting with drugs and, at 17, crashed his car while high, leaving the other passenger -- who was also his best friend -- paralyzed. After a brief stint hosting VH1's 8-Track Flashback, Garrett was arrested for trying to purchase drugs from undercover cops. After more arrests and stints in rehab, Garrett released another album in 2007, Three Sides of...Scott Baio:
Highlights: Known to many as Chachi on Happy Days and, later, Joanie Loves Chachi, Baio also recorded a few albums in the 80s before starring in Charles in Charge. Most recently the actor resurfaced in the late aughts with two VH1 reality shows, Scott Baio is 45...and Single and Scott Baio is 46...and Pregnant, which centered on his life as a ladies' man and, later, as a new father.Corey Feldman:
Highlights: One of "the Coreys," Feldman burst onto the scene with roles in Stand By Me, The Goonies, Gremlins and The Lost Boys. After struggling with drug addiction, Feldman went to rehab and cleaned up his act. Most recently, he appeared on reality shows The Surreal Life and The Two Coreys, which centered on his friendship with fellow '80s idol, Corey Haim.Corey Haim:
Highlights: The other member of "the Coreys," Haim got his start with roles in Lucas and The Lost Boys. Like Corey Feldman, early fame and success led to excessive drugs and partying for Haim. He wasn't able to replicate his success in the '90s and '00s aside from appearing with Feldman in The Two Coreys. Tragically, Haim died in 2010 after an apparent overdose at the age of 38.Kirk Cameron:
Highlights: Everyone's favorite (and hot) big brother, Mike Seaver, on Growing Pains, Cameron married a Growing Pains guest star, acted in a few more low-profile roles and found religion. The born-again Christian and his wife founded Camp Firefly, a camp for seriously ill children. He also has a television ministry called The Way of the Master.Andrew Keegan:
Highlights: The bad boy every '90s girl (or gay boy) had a crush on, Keegan is probably most remembered for roles in Camp Nowhere and 10 Things I Hate About You. Though his imdb shows that he's still acting, his days in the spotlight are gone (but perhaps a 10 Things I Hate About You reunion will bring him back?).Jonathan Taylor Thomas:
Highlights: The Home Improvement star also had memorable roles in Tom and Huck and The Lion King before leaving acting to enroll at Columbia. A few months ago his TV mom, Patricia Richardson, tweeted that JTT was acting again and "wants to direct." Usher:
Highlights: Biebs' mentor had success as a teen R&B artist and blew up in the mid-aughts with hits like "Yeah" and "Burn" from Confessions. Also, he was in She's All That! He's still a successful singer who recently played the Super Bowl.Freddie Prinze Jr:
Highlights: A late '90s/early aughts dreamboat with lead roles in She's All That, I Know What You Did Last Summer and Scooby Doo, Prinze married '90s/00s dream girl Sarah Michelle Gellar (a.k.a. Buffy), with whom he has a daughter. For a brief time in the late '00s, Prinze worked at WWE as a producer before leaving in 2011. Paul Walker:
Highlights: Another '90s/00s heartthrob, Walker's photos plastered many a middle school locker after roles in She's All That and Varsity Blues. He followed up with more adult roles in The Fast and the Furious franchise and continues to act.Aaron Carter:
Highlights: Riding the late '90s boy band wave, Backstreet Boy Nick Carter's little bro had success with pop hits like "Aaron's Party (Come Get It)." (Also: Remember when Lindsay Lohan and Hilary Duff fought over him?) After struggles with drugs and stints in rehab, Carter is now in the off-Broadway revival of The Fantasticks, and playing shirtless DJ sets in East Village bars.Justin Timberlake:
Highlights: The one-time N'Syncer has had a hugely successful career as a solo artist and actor and should deeply consider joining the cast of SNL full-time. He is reputedly engaged to Jessica Biel.