Girl who blasts music every day when she drops off her sister is peak older sibling

The primary job of an older sibling is to be as embarrassing as possible.

Congrats to YouTuber LittleThai, who has earned this accolade in spades. Each day, she blasts a song at an extremely high volume as she drops her little sister off at school. Her selections really run the genre gamut, ranging from "Woody's Roundup" from Toy Story 2 to "Get Low."

So, predictably, her little sister's reactions vary, too. Missy Elliott's "Work It"? Great. "All I Want for Christmas Is You"? A harder sell, for some reason.

Trust us. You won't believe you watched a nine-minute YouTube video -- joyfully, no less. Such is the power of the Peak Older Sibling.