Once upon a time in the world of children's television, a puppet grandma serenaded her little green puppet granddaughter saying, "Who's A Wonderful Girl" and it was cute, but not exactly famous. Twenty years later, Nanalan's 'Princess Song' has become a viral TikTok sensation.

Here's how the simple tune became the go-to soundtrack for a series of wholesome TikTok videos in the Fall of 2023.

What Is Nanalan, And Where Did The 'Princess Song' Come From?

Nanalan is a Canadian children's television series that aired from 1999 to 2004. The show features puppet characters similar to those seen on Sesame Street and follows the adventures of a 3-year-old puppet girl named Mona in her grandmother Nana Bea's backyard.

The 'Princess Song' is actually a song sung by Nana Bea to Mona, as seen in a YouTube video shown below. In this scene, grandmother Nana Bea sings "Who's That Wonderful Girl" to Mona as she walks towards the piano dressed in a princess costume.

How Did Nanalan's Princess Song Go Viral On TikTok?

Sometime in early October 2023, TikToker @xcomedown posted a clip from the song with the caption, "When the clothes you ordered arrive and you treat the family to a fashion show." This is the earliest known upload part of the trend, racking up more than 8 million plays, 1.5 million likes, and inspiring 615 other videos within a month.

@xcomedown #nanalan #mona #onlineshopping #clothes #fashion #humor #funny #fyp @nanalan’ official ♬ original sound – Jess

TikTok users couldn't resist the charm of this catchy tune. On October 30th, @wheresjuniormint added the Nanalan clip, overlaying it on a wardrobe scene with the caption, "My sister hyping me up as I try on the clothes she's trying to get rid of." This post received over 4.2 million plays and 949,000 likes in just four days.

@wheresjuniormint and suddenly she thinks im cute #sisters #whosthatwonderfulgirl #xybca #fyp #foryou ♬ original sound – Jess

On October 26th, @christinajayofficial added an exploitable twist to the video, overlaying it with text that read, "My man being extra nice when I'm on my period because he's actually scared." This post received over 2.9 million plays and 472,000 likes within a week. The trend is a reminder that anything can spark creativity and humor, even a children's TV show!

@christinajayofficial #Meme #MemeCut #whosthatwonderfulgirl #periodmemes #bfmemes #bfgffunny #capcut #fyp @Brendita ♬ original sound – Brendita

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For the full history of Nanalan's 'Princess Song,' be sure to check out Know Your Meme's encyclopedia entry for more information.