Former president Bill Clinton poses for a selfie as he campaigns for his wife, Democratic presidential nominee Hillary Clinton, in Orlando last week. (Red Huber/Orlando Sentinel via AP)

Former president Bill Clinton will headline two fundraisers in Beverly Hills on Tuesday after Hillary Clinton was forced to cancel a trip to California to recover from pneumonia.

The former president will fill in for his wife at a Tuesday afternoon gathering at the Beverly Hills home of Seth MacFarlane, which will feature a performance by Lionel Richie, and at a dinner Tuesday night at the Beverly Hills home of Diane von Furstenberg and Barry Diller, according to a person familiar with the plans.

The Democratic presidential nominee's illness, which caused her to leave a Sept. 11 commemoration ceremony in New York early Sunday, is forcing her to miss three finance events in California, but they are scheduled to continue in her absence.

Hillary Clinton plans to appear via teleconference at an event Monday afternoon at the Masonic auditorium in San Francisco, a large event that will feature performances by k.d. lang and singer-songwriter Lizz Wright. Tickets started at $250 and went up to $50,000 to serve as chairman.

The campaign is also expected to raise significant sums in Beverly Hills. Donors were asked to give $5,000 to $33,400 to attend the gathering at MacFarlane's home, while tickets to the von Furstenberg-Diller dinner were $100,000 a person.

Clinton remains far ahead of GOP presidential nominee Donald Trump in fundraising, bringing in $143 million in August in conjunction with the Democratic National Committee, compared with the $90 million that Trump raised with the Republican National Committee. However, his strong small-dollar operation appears to be close to matching hers: Trump now boasts 2.1 million donors to Clinton's 2.3 million.