The cult classic Grease first hit cinemas in 1978.

Now, 40 years later, it still plays a huge role in pop culture. Everyone knows at least oneGreasesong, and even today’s teenagers can relate to the kids from Rydell High.

And those ‘kids’ who starred in the iconic movie are now well into their 60s.

While some of them went on to do great things, others led tragic lives once the cameras stopped rolling.

Here’s what the T-Birds and the Pink Ladies are up to now:

Olivia Newton-John, Sandy

Life after Sandu hasn't always been easy. Image: Getty.

Australian actress Olivia Newton-John was 29 years old when she played the role of high school senior, Sandy Olsson.

AfterGrease, she went on to have a successful music career. But her personal life has been marred by tragedy.

She was first diagnosed with breast cancer in 1992. After 25 years in remission, the breast cancer returned in 2017.

In 2005, Newton-John's boyfriend, Patrick McDermott disappeared from a fishing charter boat off San Pedro, Los Angeles. It's suspected that he faked his own death.

In recent years Newton-John's only daughter, Chloe Lattanzi, has battled an eating disorder.

John Travolta, Danny

John Travolta went onto to be one of the most popular actors in Hollywood. Image: Getty.

AfterGrease, John Travolta went on to star in some of the biggest movies in Hollywood. He is also a practicing Scientologist.

In May 2012, two masseurs accused the actor of sexual assault and battery. Both lawsuits were later dropped by the complainants.

In 2017, a masseur named the 64-year-old in a criminal complaint, accusing the actor of sexual battery which allegedly took place in 2002.

In 2009, Travolta's son, Jett, died while the family was on Christmas vacation in the Bahamas. He was just 16 years old. Jett had autism and regularly suffered seizures.

Stockard Channing, Rizzo

Image: Getty.

The leader of the Pink Ladies went on to star in a bunch of movies and TV shows includingThe West Wing,Practical MagicandWhere The Heart Is.

Channing has been married and divorced four times. She has no children.

Jeff Conaway, Kenickie

Conaway battled a drug addiction for years. Image: Getty.

Kenickie was Danny's best mate in the iconic film.

After starring inGrease, Jeff Conaway battled a drug addiction for years. He often spoke about his problems with substance abuse.

Sadly, Conaway died in 2011 from pneumonia with sepsis.

Didi Conn, Frenchy

Frenchie is now an autism advocate. Image: Getty.

Everybody loved pink-haired 'beauty school drop out' Frenchie.

AfterGrease, Conn went on to star inThe Fonz and the Happy Days GangandGrease 2.

She's now an advocate for autism awareness as her son, Daniel Shire, is on the Autism spectrum.

Michael Tucci, Sonny

Tucci is still acting. Image: Universal Pictures.

AfterGrease, Tucci went on to have a successful acting career.

In the 80s and 90s he starred inFlying BlindandDiagnosis Murder.

Recently he returned to the big screen inThe Heat.

Dinah Manoff, Marty

Image: Getty.

This Pink Lady went on to star in a bunch of TV shows and movies includingI Ought To Be In PicturesandState of Grace.

Manoff has been married twice. In 2017, Manoff's 19-year-old son, Dashiell, died in a car accident.

Jamie Donnelly, Jan

Jamie returned to acting after a 20 year break. Image: Getty.

AfterGrease, Donnelly took a 20 year break from acting.

In 1998, she came out of retirement. She's starred in the TV seriesMonk, and alongside Johnny Depp inBlack Mass.

Barry Pearl, Doody

Image: Getty.

This T-Bird went on to have a successful career afterGrease.

He's starred inEight Is Enough,Murder She WroteandBeverly Hills 90210.