Watch Bruno Mars Sing Elvis, Talk Spanx on ‘Carpool Karaoke’

Bruno Mars helped James Corden get to work last night in the Late Late Show host’s “Carpool Karaoke.” The duo sang a over a dozen Mars songs – “24K Magic,” “Locked Out of Heaven,” “Grenade,” “Versace on the Floor,” “If I Knew,” “Uptown Funk” and “Perm” – and talked tour riders, Elvis Presley and Mars’ casual 24K Magic attire.

“If I was wearing that level of silk, I would…