Reality TV
Rex Features
The Britain's Got Talent winner, who will appear at the Royal Variety Performance later this month, described Vickers as "mint".
"JLS are really nice guys and the girls have fantastic voices," he told the Radio Times. "I'd love to do a number with Diana where she sings and I dance. That'd be wicked."
Speaking about his Royal Variety gig, Sampson added: "I'll be singing too. It's an original song with an '80s theme. I'm not worried about the performance, it's just afterwards when we all have to line up to meet [Prince Charles].
"What if I say something really daft? I'm just going to freestyle and hope I don't let the nerves get to me."
Sampson debuted at 30 on the UK singles chart with his first single 'Get Up On The Dancefloor' / 'Headz Up' last week.
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