Lindsay Lohan and girlfriend Samantha Ronson were forced to cancel appearance on Valentine's Day

LINDSAY LOHAN and girlfriend SAMANTHA RONSON were forced to cancel an appearance on Valentine's Day after a doctor declared them too ill to fly.

The Mean Girls actress and her lesbian DJ partner were booked to host a party at Passions, a nightclub in Florida's Seminole Hard Rock Hotel & Casino on Saturday.

But the bedridden stars had to pull out of the gig on the day of the event.

Sam told People.com: "We really feel bad, and I work sick when I can, but unfortunately I couldn't drive to Miami, so I'm stuck in New York City with doctor's orders not to fly."

Organizers were left "disappointed" by the cancellation - because they failed to book another act in time for the party.

Director of Marketing for Passions, Amanda Senoff, adds: "Lindsay and Samantha stayed out late last night in New York City, and are not feeling well. A doctor said Sam was too sick with the flu to travel and Lindsay is also feeling sick. So they rescheduled for March 7.

"I conferenced all of Lindsay and Sam's managers for three hours today trying to remedy the situation, and they agreed the girls are sick. What can I say? I am disappointed but these things happen."

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