Serena Williams is an icon in more ways than one, and a group of fans recently asked her husband, Alexis Ohanian Sr., to reveal the secret to her maintaining those perfect edges while in competition.

Fans of the tennis pro asked the Reddit co-founder to check around the bathroom for the magic edge control that keeps her hair laid while sweating and exposing her natural tresses to excessive heat and wind.

Ohanian actually did relay the message to Williams, who was surprised by the out-of-the-blue inquiry, eventually laughing it off while keeping the product under wraps. See a screenshot of the couple’s text convo below.