Pat Boone and his wife Shirley are co-hosting a fundraiser for GOP candidate Rick Santorum on March 28 at the Beverly Hills home of Fred Wehba, co-founder of the real estate investment giant BentleyForbes, according to invites that went out this week.

Boone, long active in Republican politics, endorsed Santorum, even though the Pennsylvania senators brand of social conservatism hasn't gained much traction in the entertainment community. It's expected the event will draw on a larger pool of Los Angeles evangelicals, and conservatives still cool to Mitt Romney. In the last cycle, Wehba held a fundraiser for Mike Huckabee as he was engaged in a primary battle against John McCain.

Tickets for the event start at $1,000 per person.

Romney, meanwhile, will be in Los Angeles the night before, for a $2,500 per person fundraiser at the Century Plaza Hotel.

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