Let the Groove Get In

This extended dance flare-up finds Justin commanding the listener to get "crazy like we ain't never gonna see tomorrow." Timberlake debuted the tune on Late Night with Jimmy Fallon on March 13, 2013.

The song samples "Alhamdulillahi," which is the opening track on the 2002 album Explorer Series: Africa-Burkina Faso – Rhythms of the Grasslands.

This is one of seven tracks on The 20/20 Experience that run for seven minutes or longer. Speaking with London radio program The Capital Breakfast Show with Dave Berry and Lisa Snowdon, Timberlake explained that he was inspired by a host of other legendary acts for the album. "The average song length is probably seven to eight minutes," he said. "When we were making the record I said: 'If Pink Floyd and Led Zeppelin can do 10-minute songs and Queen can do 10-minute songs then why can't we?' We'll figure out the radio edits later."