Back at the Barnyard - Season 1 - Eps 31: Barnyard Idol
When it's discovered that Pig has a beautiful singing voice, Otis and the gang enter Pig in a singing competition to win the farmer a golden tractor. When Mrs. Beady loses, she is out to prove that Pig is a talking barnyard animal. Meanwhile, Pig's over-practicing causes him to lose his voice. So Otis tries to use lip synching but he doesn't know the lyrics in the song, so Pig is booed for singing terrible lyrics. In the end, Pig did win a prize (a tiny tote bag), but they couldn't keep the tractor they stole because it was illegal to steal a grand prize without approval of winning.
About Back at the Barnyard

Title: Back at the Barnyard
First Air Date: 2007-09-29
Last Air Date: 2011-11-12
Status: Ended
Rating: 6.9/10 (from 124 votes)
Language: EN
Seasons: 3
Total Episodes: 97
Network: Nickelodeon
Genres: Animation, Comedy, Kids
Production Companies: O Entertainment
Synopsis
What do farm animals really do when the humans aren't looking? Just ask Otis, a carefree "party cow" who inherited the job of keeping the barn... and it's residents... in order. But instead of responsibility, Otis is driven by an insatiable need for fun, fun, fun. Along with his barnyard friends Pip, Pig and Freddy, Otis will stop at nothing in his pursuit of a good time... which usually means a few close calls with humans and other threats to what really goes on behind closed barndoors.
Cast

Chris Hardwick
Otis

Leigh-Allyn Baker
Abby

Jeffrey Garcia
Pip

Tino Insana
Pig

Cam Clarke
Freddy

Rob Paulsen
Peck

Dom Irrera
Duke

Wanda Sykes
Bessy

Maria Bamford
Nora Beady

Fred Tatasciore
Farmer Buyer