Pat et Stanley is a French animated show that appears as part of the children's television programme TFou on the French network TF1. Animated by Pierre Coffin, Pat the hippopotamus and Stan the dog have appeared in 362 short episodes as well as the 26 minute movie Pat et Stanley: Le Trésor de Pit et Mortimer. Outside of France, the duo are most famous for the short clip in which Pat is seen singing "The Lion Sleeps Tonight." The clip appeared in Italy in a commercial by Ferrero's Kinder chocolates; they also produced a "Happy Hippo" shaped chocolate snack. They also appear re-voiced in English on The CW4Kids in the United States, and under two Dutch versions on Jetix in the Netherlands, and on Ketnet in Flanders. Pat and Stanley are now featured in many unofficial online videos singing English songs.