"Tusch Touch 3" or "Mudshovel" are free similar fonts to the Zumba commercial font called Fleche Heavy.
The word Zumba in the logo is a font type called Fleche-Heavy.
The Zumba logo uses Fleche-Heavy, made by FontHaus.
The closest thing i have found is the Georgia font
Expressa TS-Heavy font
typeset Typeface
There is no real roblox font, but the closest one is a Mario font. It's on Fontspace and you'll have to type it yourself.