Lucy said: "I am by no means a fashion expert. I am, however, extremely interested in pronunciation and I know a lot of you guys are as well and you want to sound like you know what you're talking about.
"A lot of you will be here because you want to improve your English speaking and pronunciation and will want to sound more professional when talking about these brands."
Hermès, a French designer, is meant to be pronounced "AIR-mez", not the common mispronunciation of 'Hermz'.
Popular sports brands seem to have different pronunciations everywhere, with Adidas and Nike sometimes being pronounced "A-dee-das", and Nike to rhyme with Pike.
But they're actually meant to be pronounced "Nike-ee" and "Adi-dass', the latter being named after its founder Adi Dassler.
The more high-end designers are often pronounced incorrectly, with many people saying "Bale-Main" instead of "Bul-muh" when uttering the name of the French label Balmain.
Similarly, many people pronounced Versace as "Ver- sar-chee" when the Italian brand is meant to be said like "Ver-SAH-cheh".
English With Lucy now has more than 350,000 subscribers from all over world, who ask her questions about life in Britain, how to pronounce words and popular sayings and phrases.
Ms Earl, 22, set up the business with a loan from her father. She bought a tripod and camera, taught herself how to shoot and about lighting and now earns more than the average teacher through advertising
She previously said: "It's a business that I started completely from scratch with a $980 business loan from my dad, paid back with interest, of course, and has now a pretty significant turnover.
"It was a huge step for me to say no to the grad schemes and yes to going at it alone, but it was the best thing I ever did.
"Every day I get to work with everything I'm passionate about with total creative control, marketing, social media and the English language."
HOW MANY ARE YOU PRONOUNCING PERFECTLY?
1. Hermes - AIR-mez
2. Adidas - ADI-dass
3. Balmain - Bul-muh
4. Loewe - Lo-EH-veh
5. Moschino - Moss-KI-no
6. Versace - Ver-SAH-cheh
7. Nike - Nai-key
8. Thierry Mugler - Tea-EH-(R)ee Moo-gle(r)
9. Saint Laurent - Suh Lo-(r)o
10. Ralph Lauren - Ralph LO-ren
11. Givenchy - Zhee-vo-shee
12. Porsche - Por - shuh