FHM magazine model Bonang Matheba hosted the evening and joked she wanted to get the prince dancing.
The famous South African presenter wore a skin-tight white dress and said: "I told him he should loosen up and have some fun - I will show him some South African dances."
More top news
The heavy showers will ease off this weekend.
Labour MPs are attempting to build a consensus for a single challenger to Corbyn, while the big game in the Tory Party is Stop Boris.
Hefty showers and longer, slow moving downpours into this evening and again on Saturday - some lively with thunder.