Grizabella was the most glamorous cat of the tribe, all the toms fantasized about her and all the queens envied her. She had a happy life, getting everything her way. A tom came to the tribe months before the ball. He was very charismatic, gorgeous, the total alternate for the tribe's glamour cat. Grizabella went head over heels for him which made all of the toms angry. She had morning walks with him, gave him everything he wished for even until it came to the point when she had to give herself to him. Grizabella was blinded by love; she did not saw that she was just being manipulated by the tom she loved so much.

When the Jellicle Ball came, Grizabella was bound that the tom and she would do the mating dance together. To her surprise the tom refused to mate with her, reasoning that he must leave to travel the world. Grizabella feared to lose him, so she decided to join him in his journey instead.

Though it was against the will of her fellow Jellicles that a member should leave the tribe, she sneaked out with him during the ball without warning. Grizabella was very overwhelmed to be with him in his journey but her dream come true became her worst nightmare.

Everything changed as time passed by; Grizabella slowly discovered that the tom she once loved wasn't the tom she had met in the junkyard. She would be physically beaten by him every time he was angry. He would come to their den very late at night and forced her to give herself to him after every beating. Her beauty was slowly deteriorating until she turned into a shabby cat. She was filled with regrets and wanted to escape his wrath.

Everything went from worse to worst. Grizabella knew that she had conceived his kitten. A bastard in this case, since they haven't mated during the ball. She told him the same night, hoping that he would change his ways but she was wrong. He left her as soon as he knew, telling her that he has been cheating on her every single night with a queen by the bar (for humans).

Heartbroken, Grizabella immediately left the den and wandered the busy streets of London. She was too afraid to return to the tribe. Turning back on the tribe was the greatest crime a Jellicle can commit.

Grizabella became a live animal test on different laboratories in exchange for her work she was taken good cares by the scientists. When her womb starts to grow the scientists moved her to the pound where she was adopted by a ruthless teenager boy. He pulled her tail, shaved her fur, and clubbed her just for fun. She would be only given food and water every other day only. Fearful of what this boy can do to her kitten, she ran away while the boy was fast asleep (dawn).

With nowhere to go, she decided to go back to her beloved tribe. When she arrived the cats were all stunned to see the glamour cat they once worshiped. She didn't have her sparkle anymore. Her glamorous coat was filled with dirt and her body was half bald but everyone was even more stunned to see that her womb has grown bigger. She ignored their prejudice stares and headed to her abandoned den. It felt home again for her, even though everything was dusty and dark.

She stayed in isolation. Old Deuteronomy had heard about her. He ordered Asparagus', the theater cat, mate to treat her wounds and bruises.

"How is she doing?" Old Deuteronomy asked Asparagus' mate.

"She's not doing any better. She has grown very ill and very weak" the queen told Old Deuteronomy.

"How about the kitten, is it alright?" Old Deuteronomy asked.

"I am not sure" she replied.

The time came when she finally gave birth to a healthy tom. At Grizabella's wish she asked for Old Deuteronomy.

"Old Deuteronomy' Grizabella greeted

Old Deuteronomy was very surprised to see how miserable Grizabella looked.

"I don't have much time left" Grizabella smiles at him

"Don't say such words" Old Deuteronomy told her.

"I have accepted it" Grizabella told him.

"What about your son?" Old Deuteronomy questioned her.

"I want you to take good care of him. Treat him like yours. Don't let him know me or his bastard father" Grizabella became faint.

Old Deuteronomy's face became disapproving.

"Old Deuteronomy, please, I beg you. Show him love, everything that is the opposite of my bitter experience beyond the Junkyard" Grizabella started to whisper.

Old Deuteronomy gave her a nod. Assuring her that he will love and care for her newborn kitten.

"Goodbye my little Munkustrap" Grizabella told her kitten, whom she cradled in her arms.

Grizabella instantly died. Old Deuteronomy brought the young kitten with him in every tribe he visited. He still showed Munkustrap the same compassion when he had another son, Rum Tum Tugger or simply Tugger.