But thankfully the frightening episode seems firmly behind the 20-year-old as she was seen looking happy and healthy on Tuesday evening as she joined her rock star father and the rest of her family in London.

Jon, 51, his wife Dorothea, 51, Stephanie and brothers Jacob, 10, and Romeo, eight were among the star guests at Prince William’s Winter Whites Gala in aid of the Centrepoint charity.

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Healthy and happy: A fully recovered Stephanie Bongiovi looked stunning as she attended Prince William’s Winter Whites gala at Kensington Palace

Ready to rock and royal: Stephanie looked glamorous for the royal event in a white gown with a black trim halterneck

Family love: Stephanie was rushed to hospital after she overdosed on heroin almost a year ago, seen here with dad Jon Bon Jovi, mum Dorothea and brothers Jacob and Rome

Bon Jovi’s daughter happy and smiling one year on from overdose

The Bon Jovi frontman performed at the charitable event at Kensington Palace, but  made the night a family affair as he brought his children and wife of 24 years along to the once in a lifetime affair.

One year ago:  Stephanie and the family headed to the Hamptons days after her hospital stay

Stephanie looked elegant in a stunning white gown with a black halterneck, which perfectly coordinated with the family’s monochrome look.

She made the most of the criss-cross halter neck design by sweeping her long locks to one side, accessorising with a pair of statement drop earrings and a black evening bag.

The former liberal arts student flashed a big smile as she stood next to her 51-year-old father for a group shot before playfully stepping out to strike a pose on her own.

Jon’s family did him proud with Stephanie’s younger brothers Jacob Hurley, 10, and eight-year-old Romeo Jon looking dapper in tuxedos while Dorothea was stunning in a simple black off the shoulder dress.

Later on in the evening Stephanie was spotted with her dad as the pair chatted to fellow performer Taylor Swift, who also posed for a picture with a starstruck Jacob and Romeo.

Jon and Taylor also teamed up for a rendition of Bon Jovi smash hit Livin’ On A Prayer, alongside Prince William.

The fun evening comes almost exactly a year since Stephanie was found unresponsive in her dorm room at New York’s Hamilton College – a well respected, $55,000-a-year liberal arts institution in Kirkland.

Meeting royalty: Jon and his family posed for a group shot with Prince William, who held the event in honour of the Centrepoint charity

Supportive dad: Stephanie looks on as her dad chats to fellow performer Taylor Swift at the London gala, which comes just one year on from the now 20-year-old’s drug overdose

Rock star father: Stephanie was in the crowd as her dad took to the stage for an impromptu rendition of Bon Jovi hit Livin’ On A Prayer with Taylor Swift and Prince William

Jon recalled earlier this year how his daughter phoned him from hospital to explain the shocking situation.

Speaking to the Daily Mirror, he said: ‘It was horrible, a horrible moment. It was my worst moment as a father.

‘The first thing she said, I’m all right but then she said this is what happened. You wake up, you shake it off and put your shoes on and say OK, I am on the way home.’

Police were called to Stephanie’s dorm room after she had been found unconscious with a small amount of heroin.

The unfortunate circumstance could have been much worse for Stephanie when police brought forward charges against her and companion Ian Grant for drug possession.

Happy and healthy: Stephanie flashes a big grin as she poses in her stunning halter neck monochrome gown for the star-studded event

However, the charges were dropped due to local law preventing people who have had a drugs overdose from being prosecuted.

While the Keep The Faith singer said his daughter was very lucky, he stressed the issue is more common than people think.

‘I feel it was a terrible tragic lesson of life but I thank God every day because she is whole. It happened and it has gone. 

‘I know personally people whose sons and daughters, where it was a lot, lot worse. That could have been Stephanie.’

Starstruck: Stephanie smiles in the background as her delighted little brothers Jacob and Romeo pose for a snap with Taylor