Celebrity hairstylist Mark Townsend has been working with Mary-Kate and Ashley Olsen for more than 20 years. In a new episode of the 'Gloss Angeles' podcast, the pro spilled his secrets to achieving ...

Mary-Kate and Ashley Olsen have solidified ... recounted the evolution of the sisters’ hair routines over two decades, having worked with the Olsen twins since they were 16.

Related: The Unofficial Guide to Mary-Kate and Ashley Olsen's Hair Evolution Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to ...

"I set her hair with clips and let it air-dry and it turned out so perfect." Related: Mary-Kate and Ashley Olsen's The Row Remains the Most Buzzy Show at Fashion Week — and This Season Had ...