There were huge smiles all around as Olympic sprint champion Allyson Felix took a "selfie" with several Singaporean students on Saturday.
The American later posted the heartwarming photo on her Twitter account, and said: "It's an honour and a special responsibility to be a role model.
"I have a passion for kids. Anytime I can be hands-on, I want to talk to them and relate to them."
And she feels that such a passion to be a clean role model is necessary to combat the spectre of drug-taking in athletics to enhance performance.
Said the reigning Olympic 200m champion, who is in Singapore at the invitation of sports apparel giant Nike: "Anytime when you have anyone who has been caught doping, it is unfortunate and it sets our sport back.
"But I just try to keep a positive light on our sport and be a role model to teach children that is not the way to go."
Indeed, the sport had taken a hit in recent months when Jamaican sprinters Asafa Powell, Veronica Campbell-Brown and Sherone Simpson all failed drug tests.
A verdict on a World Anti-Doping Agency (Wada) audit on the island's anti-doping credibility is expected in the middle of this month.
Felix, whose image has never been tainted by performance-enhancing substances, told The Sunday Times: "It is a difficult process (to catch drug cheats).
"We really have to rely on the authorities that are there - Usada (US Anti-Doping Agency) in the case of America and, overseas, Wada.