NBC stars team up for massive Super Bowl XLVI commercial

US television network NBC has assembled its finest stars for this massive commercial.

Stars from some of their most successful shows including 30 Rock, The Office, Law & Order: Special Victims Unit, Parks & Recreation, The Voice, The Tonight Show with Jay Leno, Parenthood and Saturday Night Live for the four minute epic. 

The stars perform a number called "Brotherhood of Man" which sees them declaring their love of NBC through song.