it turns out mila and emma stauffer are famous in their own right ♪ keke, do you love me >> a squid!> everyone really, really, really loves us. >> we have to do hard work. it's so hard. we are in charge of our target line. so crazy. >> you heard that right. these 4-year-olds have a clothing line at target. >> all these people are buying our clothes? >> their saurg is up to 3.9 million. . mom katie says she and the girls make more money than her husband and he's a doctor. the riz to stardom started when their older sister posted a video a them on instagram. it went viral. even reese witherspoon is a fan. but, sorry, reese. >> i never heard of her. >> you don't know reese witherspoon? >> no. it's a weird -- like a spoon? >> they don't know who kim k. is either. >> we know her mom, but we don't know kim. >> trick or treat. >> are you guys princesses? >> and they would love do a video with justin bieber. >> is this what all the hype is about? justin bieber is kicking bottles. doesn't even look that hard. >> despite their stardom, these little ladies don't have hollywood dreams for when t