Which stars are celebrating milestone birthdays this year?

Which stars are celebrating milestone birthdays this year?

All birthdays are special, but milestone birthdays – whether you’re turning 30, 40, or 70 – hold a particular significance. There’s no shortage of Hollywood stars leaving another decade behind in 2015, but you wouldn’t know it based on how stunning and youthful they all look!

Case in point: Can you believe Shania Twain turns 50 this summer? The gorgeous Canadian songstress, who only seems to get prettier with age, has big plans for her milestone year as she prepares to go on tour for the first time in more than a decade. Other stars celebrating the big 5-0 this year include Ben Stiller, Elizabeth Hurley and Robert Downey Jr., who welcomed a baby girl with wife Susan in November.

CELEBRITY MILESTONE BIRTHDAYS: CLICK FOR THE GALLERY

Speaking to Extra’s Mario Lopez after his daughter’s birth, the actor joked of his upcoming 50th fête: “My Mrs. better throw me the greatest party of my life! And I’m stating that here and now, with you as my witness, so hold her accountable … yeah, 50 is going to be a big deal, I guess.”

Meanwhile, elegant Helen Mirren, who turns 70 in July, continues to work tirelessly, with three movies scheduled for release in 2015.

But it’s not just Hollywood veterans who have milestones coming up, either. Officially leaving their teenage years behind are ahead-of-their-years models Kendall Jenner and Gigi Hadid, who turn 20 on April 23 and Nov. 3, respectively. If Kendall is anything like big sister Kim, expect the beautiful brunette to ring in adulthood with a big blowout bash – though, unlike Kim, it won’t be held in Las Vegas, as the legal drinking age in the United States 21. (Maybe the fashion model will say goodbye to adolescence here in Canada)?

Read on to see which stars are blowing out their candles in 2015!

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