One Direction member Louis Tomlinson's mom Johannah Deakin dies at 43

Johannah Deakin, the mother of One Direction star Louis Tomlinson, passed away on Wednesday, Dec. 7, following a battle with leukemia. She was 43.

Deakin had been diagnosed with a "very aggressive form of leukemia" earlier this year that had required "immediate and continuous treatment," her family said in a statement on Friday.

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Deakin is survived by her husband, Dan Deakin, as well as her seven children. Tomlinson is reportedly still going to go through with his previously-scheduled appearance on "The X Factor" on Saturday night, an appearance that his mother had been especially excited about.

See photos of Louis Tomlinson and his late mother together:

Read Dan Deakin's full statement below:

"Johannah was first and foremost a truly amazing mother to seven children – Louis, Lottie, Félicité, and two sets of twins, Phoebe and Daisy and Ernest and Doris — whose individual talents and success are testament to the principles and beliefs she instilled in them. She was also an incredibly proud grandmother to [Louis' son] Freddie."

"Incredibly selfless, she would always look to put other people before herself. She desired nothing more than for everyone around her to be happy and loving. She worked tirelessly on numerous charity campaigns, creating memories for many individuals and their families. It wasn't uncommon for Johannah to hear through the media of an individual in need of assistance, and she would immediately make it her objective to get that person what they often desperately needed, and rarely without success. These are the things that made Johannah happy and content in life, and all of which for me made her simply the perfect wife and best friend to face each day with. I thoroughly loved walking through life with her, and though five years was far too short a time, during that time we had so many lifetimes worth of happiness, adventures, and memories."

"We would like to send our sincere thanks to Professor Steve Mackinnon and his team at University College London Hospital where Johannah was hospitalized since May. And during the last few weeks Professor John Snowden and his colleagues at Royal Hallamshire Hospital Sheffield."

See photos of One Direction through the years:

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