Morgan regularly listened to McDell's music. Her favourite song was Life and Sunshine.
McDell said the aim of the visit was to create confidence in young children so they had their voice and to teach them to express what they cared about.
"The aim is to introduce young people to the idea that their talent can make a difference. I am an example of that because I have done it through my music.
"It is how I speak and get my own point across to people.
"It's much better to write about something you are passionate about, so I'm really there to teach them about how they can find their own voice. It's really about helping them figure out what they want to say and then being confident enough to say what they want to say."
McDell performed at the school assembly then worked with several music students.
She said she had been discouraged earlier in life by "not being the best science student" or "great at writing essays" but had thrown herself into her music. "Things like music, or just getting up and saying what you want to say, has the ability to change something and make a difference.
"All that other stuff doesn't matter because I have found my thing that allows me to say the things I want to say to make the difference I want to make.
"It's okay to sit back and realise you are different from the kid sitting next to you."
- Jamie McDell will perform at the World Vision "Bit by Bit Puzzle" in the Bayfair Mall today from 3.30pm to 4.30pm.
Also on this week with World Vision's Bit by Bit activities
The Forgotten Millions - photography exhibition
When: Today until Sunday, November 15 at 1 Spring St, Red Square.
Music and Hope.
Ever wondered if child sponsorship really works? Wondered how our team gets your money to the field and how it's used? Join musician Nathan King as he plays some of his favourite tunes, before Charles, a former sponsored child from Malawi, tells his incredible story about how his life was dramatically changed due to the generosity of a stranger.
When: November 13, 7pm to 9pm at Bravo Cafe, 20 Spring St, Red Square.
The Bit by Bit Puzzle.
Head down to Bayfair Shopping Centre to see how you and the Bay can make an amazing difference both here and across the ocean with our interactive puzzle. Singer Jamie McDell will be performing live from 3.30-4.30pm today after school.