The Backyardigans theme song

"The Backyardigans Theme Song" is originally written by McPaul Smith, composed by Evan Lurie, and performed solely by the series’ main cast, depending on the season.

French
*Et moi, c'est Théo (And me, I'm Tyrone) prior to S04E04.

Direct-to-video series
*Aku Tasa (I'm Tasa) prior to the third.

Korean
*웃음 가득한 모험 찾아 (Find a laugh-filled adventure) prior to the fourth. **출발! (Chulbal!) was not sung prior to the fourth.

Portuguese (Brazil)
*Meu nome é Tyrone (My name's Tyrone) prior to 3.

Spanish (Mexico)
*Soy Tyrone (I'm Tyrone) in 1– 2, Mi nombre es Tyrone (My name is Tyrone) in  3. **Soy Uniqua (I'm Uniqua) prior to 3. ***Soy Tasha (I'm Tyrone) in 1– 2, Y yo soy Tasha (And I'm Tasha) in  3. ****Amigos tuyos, Backyardigans (Friends of yours, the Backyardigans) prior to 4.

Swedish
*Och is not said prior to the second.