"I am a lost boy from Neverland... hanging out with Peter Pan."
Played over some simple chords, those were the six seconds of lyrics that Canadian singer Ruth B posted on Vine in 2015.
It proved so popular that fans demanded she turn the song into something bigger.
"I built on it, adding a new line every day so that eventually I had the song that I posted on YouTube," she tells Newsbeat.
The song became Lost Boy, which went on to reach number 24 in the US Hot 100.
In a US chart full of pop, EDM, rap and country, it's unusual to see a simple piano ballad doing so well.
"Every day I have to remind myself that this is not a dream," she says.
"This time last year I was a student just trying to figure life out and now I'm travelling the world singing and writing songs."
Watch the music video for Ruth B's Lost Boy. , external
The song is about being immersed in the world of Peter Pan and came about after she was watching US fairy tale series Once Upon A Time.
"I went down to my keyboard and was playing random chords and the one line I kept repeating was, 'I'm a lost boy from Neverland.'
"I decided to post it to Vine and it got the biggest reaction I'd ever gotten. People wanted to hear more and I had to explain it wasn't a song.
"When I sat down to write it I wanted to make it as relatable as I could. Everyone's been lonely at some point and in need of a friend."
That was early in 2015. The 21-year-old's now signed to Columbia Records.
However, the studying had to go on hold.
"I was a political science student. I had a nice talk with my parents and told them I was going to give singing a go. I will go back to studying but I'd love to get a degree in writing."
Canada's Ruth B has put her life as a student on hold to travel the world as a singer
Ruth, who's from Edmonton in Canada, is now working on a debut album and insists she's more than just a one hit wonder.
"I have 24 songs in the bag. I do 45-minute sets at gigs and it's all original stuff. I don't find the writing challenging. I grew up loving writing stories and poems."
She also says she's a huge fan of Ed Sheeran who she calls "inspiring".
"His album + (Plus) played a really big role in my understanding of music. It was one of the first times I heard a body of work and I felt that I got it. I want to make people feel the way that album made me feel."
Ruth is a massive fan of Ed Sheeran who she calls "inspiring"
Ruth says those early days on Vine are still important to her career now.
"Vine played a huge part in my creativity level. I wanted to make sure they were the best six seconds they could ever be so.
"Now in my song writing I want every line to be the best line it can ever be."
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