WATCH: Boy, 9, with Down syndrome belts Whitney Houston classic in viral video

PROSPER, Texas — In less than one week, a Texas boy has become an internet sensation.

Last week, 9-year-old Dane Miller's aunt, Jeanne Miller, posted a video on her Facebook page of the boy singing Whitney Houston's hit "I Have Nothing" in the car. She says Dane, who has Down syndrome, loves to sing.

Within a week of being posted, the video has more than 16 million views and the post has been shared over 230,000 times.

"He's very high-functioning so if he hears music, it's just something that sticks with him. He's very proud [of the video]. He just smiles and giggles," Jeanne Miller told ABC News.

The Miller family has now created a YouTube channel titled Amazing Dane, where they plan to share more videos to spread joy and laughter.