She is a former pupil of Jewish school Yavneh College in Borehamwood, Hertfordshire - where her mother co-owns Dresswise, an award-winning clothing shop for teenage girls.
She told the Mirror: “Once I recorded the single, the other students from my college said they wanted to get involved, and got together to do the music video.
“It’s been amazing to see so many people wanting to help me. I’m just hoping that I raise loads and loads of money for these kids who are suffering.
“I’m so proud of everyone who has surrounded me and grateful to everyone supporting me.”
It has so far attracted the support of social media users – most notably members of girl band Little Mix.
The group’s official account tweeted: “Mixers please support this beautiful song in aid of Grief Encounter, an amazing charity supporting kids through bereavement”.
Ms Lane’s father, Bobby Lane, said: “We’ve had a lot of interest from famous people, who promised they’ll plug the song on their social networking sites.
“We’ve also had discussions with Premier League clubs who might ask Molly to sing the song before games next week.
“Can it get to No1? Definitely. We’re hoping people will want to go and download it, it’s only 99p and every penny of the profit from each download goes directly to the charity.”
The Grief Encounter charity helps three to 19-year-olds following the death of a parent or sibling.
It was founded by child bereavement counsellor Dr Shelley Gilbert, and it counts Kevin Wells, whose daughter Holly was murdered in Soham in 2002, among its patrons.
Do They Dance in Heaven can be purchased on iTunes now. Proceeds will be donated to Gried Encounter
