Bruno Mars joins James Corden for the ‘best Carpool Karaoke ever’ – and fans go into meltdown

But Bruno Mars’ turn in the Late Late Show host’s front seat has been branded the best one ever.

The pair drove around the streets of LA, while blasting out some of the Uptown Funk singer’s best hits.

And fans took to Twitter in their droves to rave about the hilarious clip.

One wrote: “Carpool karaoke w/ Bruno Mars saved the day.”

Bruno Mars and James Corden drove around the streets of LA [YouTube]

While another commented: “Bruno Mars’ Carpool Karaoke! Best …