Arthur Moledo do Val (born 21 August 1986 in São Paulo, also known by his pseudonym Mamãe Falei, is a Brazilian politician, activist member of Free Brazil Movement, YouTuber and entrepreneur.
In the 2018 Brazilian general election, he was elect State Deputy of São Paulo as member of Democrats (DEM), being the second most voted with 478,280 votes, after Janaína Paschoal.He is a defender of mostly liberal ideas and uses his channel in the internet to spread it among his followers, which are more than 2.5 million subscribers on YouTube.