Sweet harmony! Bruno Mars’ Carpool Karaoke on James Corden’s The Late Late Show on Tuesday, December 13 was filled with hats, humor and of course plenty of funk.

“The four-time Grammy winner and the fun-loving host went wild as they drove around Los Angeles belting out his tunes, from ‘Uptown Funk,” and “24K Magic” to “Grenade” and “Perm.”.

In addition to performing some musical magic the pair also had lot to laugh about as they discussed Mars’ ability to make any hat look good, his unusual dressing room demands and why Spanx are an issue in Corden’s love life.

The 31-year-old gave Corden some dance tips as they perfected the “Shoulder moves” while performing in-car.

Between costume changes and body locks Mars also showed off his impressive Elvis impersonation, revealing he’d perfected the King’s lip curl when he was just four-years-old.

Mars, who recently announced an epic 85-date ’24k Magic’ world tour, also detailed how he used to play cards to pay his rent.