The Lazy Song

"The Lazy Song" by Bruno Mars is featured on Just Dance 4 as a DLC.

Dancer
He is dressed up as a safari explorer. His outfit consists of a striped black-and-yellow hat, a khaki vest with yellow highlights over an orange suit, brown long pants and a pair of black shoes, complete with a pair of black-and-yellow socks.

Background
The routine in a safari with animals. Towards the end it turns to night but later turns back to day. There are trees and various plants in the otherwise sandy safari, and monkeys can be seen swinging in the tree behind. A lion who taps its paw to the beat of the song and even whistles can also be seen.

Gold Moves
The routine has 3 Gold Moves:

Gold Moves 1 & 2: Put your arms outward by your side as if to show your muscles. Gold Move 3: Shrug your shoulders and put your arms in an "I don't know" pose.

Trivia

 * "Pants", "sex", "God", and "birthday" (from birthday suit which refers to being naked) are all censored. However "freaking" isn't although it's been censored in other songs.
 * The background has the sun set three times, making it seem like he's dancing for four days and three nights.
 * When the whistling sound was heard, the lion and the zebra will do the whistling action.
 * This is one of the few songs to have a cutscene, after Why Oh Why and (I've Had) The Time Of My Life.
 * The lion and zebra slightly resemble Alex and Marty from the Madagascar movie series.