A 4-year-old basketball prodigy, a 5-year-old martial arts master, a singing duo and a spelling bee champion are featured.

A 4-year-old piano prodigy and a salsa-dancing duo are amongst those featured.

Some New Orleans twins are part a brass band and a child dancer and gymnast are also featured.

Twin tap dancers, a ventriloquist, a boxer, a dancer and a 4-year-old reciting an inspirational poem are featured this week.

A singer who became an Internet sensation; a string quintet; a team of sibling magicians; spunky 5-year-old performer.

Source: NBC

Children featured this week include an incredible fiddler, a genius in math, a martial arts master, incredible dancers and a talented Motown performer.

A 9-year-old piano player; yodeler; rock band; orchestra-conducting kid; jazz singer; 6-year-old dancer.

Source: NBC

A 7-year-old theater critic, a pool-playing prodigy and the youngest dancer on Janet Jackson's tour are among those featured.

Highlights and unseen footage are shown.