“Que sera, sera, whatever will be, will be. The future’s not ours to see, que sera sera.”

I wonder what Doris Day was pondering when she sang her signature song – Que Sera, Sera – for the first time when it was released back in 1956?

I bet she never dreamed where life would take her during the past nine decades of her life.

“All I ever wanted in my life was to get married, have kids, keep house and cook, and even though I did all these things, I still ended up in Hollywood,” she told Closer magazine. “It was a great trip. I’ve had an amazing life and wonderful times. And I’m happy!”

The actress and singer turned 90 today, April 3, and she is still just as vibrant and beautiful as she ever was in her heyday.

Doris Mary Ann Kappelhoff was born in Cincinnati to a music teacher and a homemaker. Her dream was to be a dancer, but when a tragic automobile accident severely injured her leg, she started singing to compensate, never realizing the blessing in disguise.

She began singing on the radio and had her first real break with several Big Bands, including those led by Barney Rapp and Bob Cosby. She copped her first hit with the single, Sentimental Journey, with Les Brown’s Band.

Happy 90th Birthday, Doris Day—an icon who's still Young at Heart!: http://t.co/t4YTWj78jJ pic.twitter.com/hJYEZWhVLm

— InStyle (@InStyle) April 3, 2014

Her acting career dates from 1947 when she joined Warner Brothers Studios, starring in musicals like Calamity Jane.

@SeldEmrysJones Love me some Doris Day! I was raised on this film! #vintagefamilyhour pic.twitter.com/IiWxj2UQGK

— The Vintage Suitcase (@TVS_Events) February 27, 2014

Celebrating Doris Day's 90th birthday today with rare photos of the showbiz superstar | http://t.co/NKjvipw0DL pic.twitter.com/dW2lFKqIIz

— LIFE (@LIFE) April 3, 2014

By the mid-’50s, she was becoming a bonified superstar, especially with hit films like Alfred Hitchcock’s The Man Who Knew Too Much, in which Que Sera, Sera was introduced.

In 1959, she was in the first of many movies with long-time friend Rock Hudson, in the racy (for its time) romantic comedy Pillow Talk, which led to a Best Actress Oscar nomination.

Happy 90th birthday, Miss Day! → Doris Day was a sparkling jazz singer http://t.co/y5ed81KLSw http://t.co/aDmV0BdQVY pic.twitter.com/nqDz6huJU5

— Allen (@StillCrazy808) April 3, 2014

Happy birthday to the one and only #DorisDay! http://t.co/c0IjAAW86F pic.twitter.com/4RV51KB8iM

— AFI (@AmericanFilm) April 3, 2014

"I like joy, I want to be joyous": Happy 90th birthday Doris Day! pic.twitter.com/kKJug1ILEp

— IndyArts (@IndyArts) April 3, 2014

Happy 90th Birthday #DorisDay! Kind to animals, full of sunshine, movies that always make me smile! pic.twitter.com/tBVNWK8C83

— Sue Geiger (@suzygeiger) April 3, 2014

For many years after that, she was the top box office star in the world.

She has also been known and recognized for her work with animals.

To celebrate her birthday, she will host an event featuring local animal rescues that need to be adopted, and will raise money for her charity, the Doris Day Animal Foundation.

“I’ve never been a fan of celebrating my own birthdays,” she said. “[And] helping animals has been a lifelong passion. They give us unconditional love and ask very little in return.”

Doris Day, rockin' a T for the cause: pic.twitter.com/RPrsUdibmS

— Lester Hammerer (@LesterHammerer) March 25, 2014

Asked what the years have taught her, the forever girl-next-door said, “Live life to the fullest … It’s not coming back again.”

Shout-outs have been coming from the many stars who have known and worked with her throughout the years.

Happy birthday Miss Day!

Image via YouTube