Now that he has given his endorsement, New Jersey Gov. Chris Christie will start generating some cash for GOP presidential candidate Mitt Romney.

Christie is holding a fundraiser for the former Massachusetts governor on Dec. 12.

According to an invitation obtained by The Associated Press, tickets for the event, which is being held at the Hilton in Parsippany, range from $500 for general admission to between $2,500 and $25,000 for VIPs.

It is the first fundraiser that Christie has held since endorsing Romney earlier this month.

Romney endorsed Christie when the former U.S. attorney ran for governor in 2009. And in January, he became the first Republican presidential contender to visit Christie at the governor's mansion in Princeton.