Cory Monteith Checks Into Rehab  —  Actor Cory Monteith, who stars as Finn Hudson on the Fox series Glee, has checked into rehab, PEOPLE has learned exclusively.  —  The actor “has voluntarily admitted himself to a treatment facility for substance addiction,” his rep tells PEOPLE.

Lindsay Lohan's Plea Deal — One String Attached ... I WANT MY ADDERALL  —  LINDSAY LOHAN'S PLEA DEAL  —  One String Attached ...  I WANT MY ADDERALL  —  EXCLUSIVE  —  Lindsay Lohan drew a line in the sand during plea negotiations in her lying-to-cops case — she'd agree to rehab …

Rachel Bilson Is Our May Cover Girl!  —  We're so excited to have Hart of Dixie star, style icon, and the girl who will forever be Summer Roberts in our hearts—Rachel Bilson—on the cover this month.  Check out some of our favorite photos from the shoot, along with behind-the-scenes scoop and video …

'Walking Dead's' David Morrissey Returning as Series Regular in Season 4  —  The British actor initially signed on for one season and will be back as the Governor on the zombie drama.  —  “The Walking Dead's” David Morrissey  —  [Warning: This story contains spoilers from Sunday's season three finale of AMC's The Walking Dead.]

Box Office Report: ‘G.I. Joe’ Opens Worldwide to Muscle-Bound $132 Million  —  Tyler Perry's thriller “Temptation” opens to sultry $22.3 million domestically, while Stephenie Meyer's “The Host” is so-so; “Place Beyond the Pines” soars at the specialty box office with $67,546 location average.

PICS: Chace Crawford Cozies Up to Model Rachelle Goulding at New York Knicks Game  —  Chace Crawford has a courtside cutie!  The Gossip Girl alum was photographed cozying up to Canadian model Rachelle Goulding on March 29 when the New York Knicks played the Charlotte Bobcats at Madison Square Garden in New York City.

Exclusive: Mamie Gummer, Husband Benjamin Walker Split  —  Mamie Gummer's marriage is ending.  The Side Effects actress — and Meryl Streep's daughter — has split with husband Benjamin Walker, reps for both stars confirm exclusively to Us Weekly.  “It's very amicable,” Gummer's rep tells Us.

Tiger is ‘the only man who understands’ Lindsey, ‘the first time she can be a woman’  —  We've already gone over this, but I just wanted to point out some of the more hilarious quotes from the US Weekly cover story on Lindsey Vonn and Tiger Woods' new romance: “In Love With A Sex Addict.”

Paul Anka — Spills Sinatra Sex Secrets ... Not a Fan of Gangbangs  —  Spills Sinatra Sex Secrets ...  Not a Fan of Gangbangs  —  If you thought Paul Anka's new biography was going to leave out the good stuff, think again — the prolific songwriter is dishing out the juiciest stories about his life …

Justin Bieber's Monkey Detained in Germany  —  MONKEY DETAINED  —  by German Officials  —  BREAKING NEWS  —  All that monkeying around has finally caught up with Justin Bieber (literally) after officials in Germany confiscated his monkey because Biebs didn't have the proper paperwork.

As Madonna joins the billionaire club, her tragic homeless brother says: 'She doesn't care if I'm dead or alive'  —  Madonna's homeless brother sits alone on a freezing cold bench drinking alcohol from a paper bag in the treacherous North Michigan snow - as his family fear he may die any day.

Jeremy Renner Welcomes Daughter Ava Berlin  —  It's true — Jeremy Renner is a dad.  —  He and girlfriend Sonni Pacheco confirm to PEOPLE that they are the proud parents of a 7 lb. baby girl, Ava Berlin Renner.  —  “They are beyond thrilled,” his spokesperson tells PEOPLE in a statement.