Photo by Chris Weeks/Getty

**Update: To Pimp a Butterfly is officially the No. 1 album in the country, with 363,000 units (including streaming equivalent albums), according to Nielsen Music.

Only hours before his new album To Pimp a Butterfly is expected to debut at No. 1 in the United States, Kendrick Lamar took to the streets of Hollywood on Tuesday to perform a series of fans favorites from the back of a moving semi truck.

The mobile event was part of Reebok’s #GetPumped campaign.

See a brief clip of the performance below via Emile Haynie's Instagram account.

A video posted by Emile Haynie (@emilehaynie) on