is setting the record straight on numerousreports he is datingKatie Holmes
."(The rumours) are 100 per cent not true," the 45-year-old actor toldEntertainment Tonight
."In fact it's quite hilarious because we simply danced at a charity event along with a lot of other people."
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The event in question was thestar-studded Night of Legends benefit
in the Hamptons at the end of August.An eye-witness said that Katie, 34, hit the dance floor with Jamie when Lenny Kravitz took to the stage to performAmerican Woman
with Bon Jovi, and at one point was seen sipping from Jamie's cocktail.Mum-of-one Katiesplit
, her husband of five years, in June 2012.The couple reached a divorce settlement within two weeks, and their case was closed in August of that same year.Top Gun
actor Tom, 50, married Katie in a spectacular Italian castle ceremony in November 2006, seven months after the birth of their daughterSuri
.It was Katie's first marriage. Tom had previously been married toNicole Kidman
, with who he has two adopted children, and actress Mimi Rogers.