[3][4] Before becoming a comedian, she worked as a lift maintenance technician and engineer (the company's first female to do so, all of which she mentions in her stand-up routine).
She has appeared in a number of television programmes, including in the comedy series The Lenny Henry Show, where she played Tanya and Mrs Omokorede, the pushy mum.
Starting in 2010, she appeared semi-regularly on The Tonight Show with Jay Leno, in a sketch comedy series called Madame Yashere: The Surly Psychic.
[10] In April 2010, her one-hour comedy special, Skinny B*tch, premiered on Showtime, a US cable channel.
In 2015, she was featured as a selected comic on Gotham Comedy Live, which airs on AXS TV (season 4-Judah Friedlander) where she referred to the City of Cleveland, Ohio as "shit.
Yashere writes for the show and plays Folake Olowofoyeku's character Abishola's best friend, Kemi.