The Insider.com

Which stars are turning dirty thirty in 2012? The list may surprise you!

• July 03, 2012Hot New Romance!
• July 03, 2012Happy B-Day Tom Cruise: Sexy through the Years
• July 03, 2012Katie Holmes Takes Off Her Wedding Ring!
• July 03, 2012Dina Lohan on Lindsay's Health Scare
• July 02, 2012A Chance to Win a BET Awards Gift Bag!
• July 02, 2012Happy B-Day Lindsay Lohan: A Life in Photos

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What a year for Anne Hathaway! Not only did she finish filming blockbusters The Dark Knight Rises and Les Misérables, the newly engaged starlet will enter her 30s this November.

While they still look young enough to play teens on Glee, hunky threesome Cory Monteith, Harry Shum Jr. and Mark Salling celebrate the milestone this year.

Prince William and his bride Kate Middleton achieved the landmark together in 2012 with Kate finishing ahead of her hubby in January, just months before his June 12 birthday.

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Come December 8, Nicki Minaj will also join her fellow 1982-ers, turning 30 just weeks before ushering in the new year.

Watch the video for the complete list, including celebs who are hitting the 40, 50 and 60-year milestone!