The Grand National Tour is a co-headlining concert tour by American rapper Kendrick Lamar and singer-songwriter SZA. It is in support of Lamar's sixth studio album, GNX, and SZA's first reissue album, SOS Deluxe: Lana. From Wikipedia
Kendrick Lamar will continue the Grand National Tour as a solo headliner with regionally tailored opening acts from Latin America to Australia.
