A Hollywood star dances with a young girl battling a rare disease-the video inspiring millions online.

FOX's Krystin Goodwin has the details:

Selena Gomez trending after sharing a video dancing with one of her biggest fans: 7-year-old Audrey Nethery. Nethery suffers from Diamond Blackfan Anemia.

In the clip the two break it down to Gomez's hit 'Love You Like a Love Song':

(Gomez) "I love you like a love song, baby. And I keep hitting re-peat-peat-peat-peat-peat-peat."

The singer gives her a hug and captions the post writing "Finally got to meet this sweetheart -she owned it fully."

Nethery is used to online fame. She's appeared on Rachael Ray's talk show and she's had a number of videos showing off her singing and dance skills go viral.

The clip of the little one rocking with the singer inspiring millions online.

I'm Krystin Goodwin, FOX News.

Finally got to meet this sweetheart -she owned it fully

A video posted by Selena Gomez (@selenagomez) on

Follow FOX's Krystin Goodwin on Twitter: @Krystingoodwin