INGLEWOOD, CA - AUGUST 24: Singer Usher performs onstage during the 2014 MTV Video Music Awards at The Forum on August 24, 2014 in Inglewood, California. (Photo by Mark Davis/Getty Images)

While James Corden is lamenting over the lack of soul and sexiness from modern male vocalists, Usher and Luke Evans crash the show to take exception and settle the dispute with a riff-off of songs from Marvin Gaye, K-Ci & Jojo and Foreigner, with a little help from The Filharmonic.