‘I’m 41 today’: Kyle and Jackie O pranked by rivals live on air

Shock jock duo Kyle and Jackie O were given a taste of their own medicine when pranked on-air by their Sydney radio rivals today.

The Kiis FM breakfast hosts were none the wiser when a gruff-sounding caller named "Erica" phoned in for a chance to spin a prize wheel.

"I’m 41 today," Erica told them.

But the caller was in fact Merrick Watts, one third of the 2Day FM and lower rating breakfast team.