Following the release of his major label sophomore effort, To Pimp a Butterfly, Kendrick Lamar celebrated the new album with an impromptu concert in West Hollywood on Tuesday night (March 24).

But instead of packing a bunch of fans into a tiny club, the rapper took his show to the streets and performed on the back of a flat-bed truck. Kendrick announced the show details on Twitter an hour before the event went down. "9pm. meet me here. 8950 Sunset Blvd. 930pm. meet me here. 8466 Melrose Ave," he wrote. Fans didn't know what to expect until they arrived.

In partnership with Reebok’s #GetPumped campaign, a brand he has partnered with for some time now, Kendrick performed tracks from his 2012 debut LP, good kid, m.A.A.d. city, like "Money Trees." He even moved into some songs off the new record and also covered Tupac's "Hail Mary." As legions of fans ran after the truck with their phones out to record the moment, Kendrick also brought out Ab-Soul as a special guest during "Alright." The ride was also customized with the TDE logo to rep the indie label he's signed to.

Watch the West Coast rhymer get up close and personal with his fans in a special way below.

See the videos below.