Kristin Chenoweth allegedly suffered "abuse" on board an American Airlines flight.
The American singer-and-actress claims she was the victim of an angry flight attendant who tried to humiliate her when she had her service dog with her.
The 44-year-old former The Good Wife star was boarding a plane from Dallas to Los Angeles on Tuesday when the incident occurred.
A flight attendant supervisor confronted Kristin as she tried to bring the animal on board, claiming she didn't have the proper paperwork to support the pooch's presence.
According to TMZ, Kristin protested and insisted she had filled in all the appropriate documents needed to confirm Madeline's status as a service dog.
Service dogs are a type of assistance dog specifically trained to help people who have disabilities, which include visual and hearing impairments, or mental disabilities such as depression.
It is not clear why Kristin needs to have the animal with her, although she has flown with Madeline before.
Kristin was then allegedly subjected to a screaming tirade from the American Airlines crew member who erupted at the star in front of several other passengers about the dog's eligibility to be on board.
Kristin reportedly burst into tears after the incident, following which she was eventually allowed to fly with Madeline. After the flight she took to Twitter to fume about the incident.
Kristin tweeted, "American Airlines: Dallas flight attnt supervisor Ms. Kidwell. Abuse not okay. #tripfromhell. (sic)"
American Airlines have since begged the star for forgiveness, with a representative for the airline issue TMZ with a statement.
"We have been in touch with Ms. Chenoweth to offer our apologies for the misunderstanding," the rep said. "We refunded the [$125] cabin pet charge as soon as we realised the mistake. We hope she will consider flying American again in the future."
Kristin has had Madeline since she was a puppy.
The dog has been seen with the star on a regular basis following the serious head injury Kristin suffered on the set of The Good Wife in July last year.
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