WATCH: The touching moment 'Supergirl' toddler celebrates her last chemotherapy treatment

The touching moment a toddler got a superhero send-off after finishing her last chemotherapy treatment at a US hospital is melting hearts online.

One-year-old Emilie Meza, donned a Supergirl costume and held her father's hand as she walked down the hospital's hallway to cheers from staff members.

She also rang a bell to celebrate the end of her treatments.

Staff also lined up and sang the little girl a song to celebrate her being able to go home after an extended time at the Hopkins All Children's Hospital in St Petersburg Florida.

The touching moment a one-year-old girl walks out of hospital after her last chemotherapy treatment. Photo: Roxana Meza/Facebook

“Oh, it was an amazing feeling,” Emilie’s mother, Roxana Meza, told ABC News in the US.

“There were tears in my eyes -- tears of joy. She’s gone through so much and she doesn’t know it because she’s so little.

"It was tough at a lot of points, but to feel accomplished that you’re getting past the chemo part of it is amazing.”

Emelie was diagnosed with acute myeloid leukemia - a type of blood cancer - when was just nine months old.

Emelie clapping along to a song sung by staff members. Photo: Roxana Meza/Facebook
Staff lined up to sign a song to farewell Emelie. Photo: Roxana Meza/Facebook

She needed to undergo a bone marrow transplant, so her father, Eduardo Meza, who was a half match, became her donor.

Her doctor Benjamn Oshrine said special precautions had to be taken because they weren't exact ma

"The first part of the transplant process she’s already completed, which is wiping her bone marrow clean with high-dose chemo and replacing it with donor’s bone marrow and immune system," Dr Oshrine said.

Emelie ringing the bell at the hospital with her father's help. Photo: Roxana Meza/Facebook

“It’s definitely been a journey already. There’s still a lot to do,” he added.

Although little Emilie has completely her chemotherapy treatments she and her family are staying at a Ronald McDonald house nearby so that her doctors can continue to closely monitor her.

“She is a supergirl,” Roxana Meza said. “She’s been through so much. She always smiles through all of the tough things and even on her bad days, she always pushes through.”