Nicole Scherzinger pleads for information on hit and run that killed 'beautiful' cousin

Nicole Scherzinger has pleaded for information related to her cousin's death. (Photo by Mike Marsland/WireImage)

Singer Nicole Scherzinger has made a plea for information on a hit and run which killed her cousin, John Frederick III, in Florida on Saturday.

The X Factor judge shared her grief on Instagram as she posted a photo of her relative with details of the hit and run, detailing that she and her family wanted "closure" following his October 26 death in Fort Lauderdale.

The 41-year-old wrote: "It’s like a nightmare, that we will never be able to wake from...It is with the heaviest of hearts that I say goodbye to my beautiful cousin, John Boy. This past Saturday October the 26th at 3am, his life was taken by a hit and run in Fort Lauderdale, FL.

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"Though I must take comfort in knowing that he is at peace with our Lord, I also know the agony our family is going through, knowing someone hit him head on and just left him there to die.

"My sweet cousin, I love you so much. This world was a better place with you and your kind, creative heart in it. We will never forget you and will carry you with us forever.

"My family and I are pleading for any information which could help support the investigation into the tragic death of this incredible man.

"I ask that whoever did this, has the dignity and strength to come forward. Our God is a loving and forgiving God, but I pray for justice for John Boy and closure for my family. #JusticeForJohnBoy."

Scherzinger, who was raised in Kentucky, also shared the same message on Twitter.

The former Pussycat Doll is currently in the UK filming for The X Factor: Celebrity live shows, which began last Saturday.