Just before Christmas last year, Selena Gomez took time out of her crazy schedule to visit Hana Hwang, a fan in a Los Angeles Hospital suffering from Progeria. The meeting was setup by Ryan Seacrest after learning of Hana's condition and her love of all things Selena. The encounter was such a memorable moment for Hana, she released a video thank you from her hospital bed.

Hana is only 13 years old, but appears much older due to her dianosis. Progeria is a genetic disease affecting children that causes them to age at a rate of 8 to 10 years faster than a normal child. According to the Progeria Research Foundation, the rare disease has "a reported incidence of about 1 in 4 - 8 million newborns". One of those affected is Sara Kennedy, the granddaughter of Donut Bank owner, Chris Kempf. There is no cure at this time.

If you cry easily, you may want to wait until you get home or when you're sure no one is around to watch this video.