Ill Abby Lee Miller Praises Loyal 'Dance Moms' Kid JoJo Siwa On Her Birthday

Abby Lee Miller is still fighting the battle of her life with cancer, but from her hospital bed, she wished a loyal former student, JoJo Siwa, happy birthday!

On Saturday, May 19, ex-Dance Moms star Miller posted an Instagram throwback photo from happier days. It showed Miller hugging Siwa as she wore her dance costume with camera crew members in the background. Both were all smiles.

Miller praised Siwa for her support and loyalty for her mentor, captioning the shot, "Happy birthday @itsjojosiwa your work ethic continues to make me proud everyday! Thank you for all of your continued support, you - JoJo with the Bow Bow have never forgotten where your TV journey started and that shows what a truly great kid you are. Hope your day was fantastic! I'm very excited to watch your star grow brighter and brighter! #dancemoms #aldc #aldcla."

Siwa turned 15 on Saturday. She appeared on two seasons of Dance Moms.

As RadarOnline.com has exclusively reported, controversial former TV personality Miller, 51, has been making plans for the worst, not long after being diagnosed with Burkitt lymphoma, a rare and fast-growing cancer that affects the lymph nodes.

Miller, who was disgraced by her financial misdeeds and served time in prison, has been getting her business affairs, will and funeral plans in order, a source ominously told RadarOnline.com.

Recently, a couple of other dance girls raised her spirits with a hospital visit, as RadarOnline.com reported.

Miller previously took to Instagram with a photo of herself with dancers Erica Perri and Maddie Pietrusinski, who is her goddaughter.

The former Dance Moms star was diagnosed with cancer just a few weeks after being released from prison to a halfway house. Miller had been incarcerated for hiding income from the IRS.

RadarOnline.com exclusively revealed on March 27 that Miller had been transferred from Victorville federal prison to a halfway house in Van Nuys, California. But just days later, Miller's medical crisis began!

Previously, Miller shared an Instagram photo of herself looking haggard and terrified in a hospital bed while hooked up to an IV. In the caption, Miller wrote, "So much gratitude and love for those who listened, those who looked deeper and those who leapt into action. So much more I wish I could say……about how quickly your life can change at the hands of others. Thanks for prayers and love!"

She also posted a shot from her hospital bed referencing the phrase, "Save your tears for the pillow."

Now, Miller is showing gratitude to Siwa, a girl who never forgot her and is known for wearing big colorful bows in her hair.

Siwa told PEOPLE she spoke to Miller after she was released from prison and added, "I have a lot of respect for Abby and she taught me a lot of things, not only about dance but simple things like manners in a restaurant."

As RadarOnline.com readers know, another former student, Maddie Ziegler, trashed Miller in a shocking tell-all book.

We pay for juicy info! Do you have a story for RadarOnline.com? Email us at tips@radaronline.com, or call us at (866) ON-RADAR (667-2327) any time, day or night.