"Back in Black" is a song by AC/DC. Known for its opening guitar riff, the song was AC/DC's tribute to their former singer Bon Scott. The song peaked in the U.S. at No. 37 on the Billboard Hot 100 chart in 1981 and was No. 51 on Billboard's Top Tracks chart, which debuted in March 1981. The song is played in the 2011 film The Muppets during a time-saving montage (a suggestion by '80s Robot) as Kermit and the gang collect the rest of the Muppets.