Showbiz
Photorazzi/Glenn Harris
The motorcross champion was spotted cosying up to a blonde at a nightclub recently while Pink was away on tour.
However, Hart, who owns a tattoo parlour, dismissed speculation that the marriage is in trouble, claiming reports are "just a bunch of trash talk."
He told the Las Vegas Review-Journal: "It's a nasty rumour. Everything's fine."
The 31-year-old says he plans to join his wife on tour in Europe, where she is promoting her album I'm Not Dead.
The couple married on a beach in Costa Rica in January 2006.
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