4x4 is the second extended play by American country music artist Granger Smith. It serves as his official debut EP on mainstream radio. The album's first single, "Backroad Song", was released to digital retailers and radio on March 24, 2015. Also included on the album is a song from his comedic alter-ego "Earl Dibbles Jr.". This extended play is also a preview of Smith's debut major label album, "Remington", which was released on March 4, 2016.
The website "For the Country Record" gave the EP a positive review, stating that the EP is "definitely easy on the ears", and "the lead single is the perfect summer song to jam out to while cruising down your own back roads".
The album debuted on the Top Country Albums chart at No. 6, and Billboard 200 at No. 51, selling 8,700 copies for the week.