The broadcaster confirmed the current series will continue on Monday night with a tribute to the star.
The Love Island presenter opened her BBC Radio 5Live show with some emotional words about Caroline.
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“My heart is broken. We had something so special."
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The TV presenter had pleaded not guilty to assaulting her boyfriend Lewis Burton.
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The Voice star and singer first met the Love Island presenter when they worked on The Xtra Factor together in 2011.
"Caroline had such a presence, lighting up a room the minute she walked into it."
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Laura also shared a poem and a photo of her with Caroline on Twitter.
The Love Island host was found dead at her London home on Saturday afternoon.
The TV presenter was found dead at her London flat on Saturday.
The two were banned from making contact with one another last month.