BTS made a Tuesday night appearance on The Late Late Show With James Corden, where the band reflected on their historic performance at the 2020 Grammys on Sunday night.Taking the stage at Los Angeles' Staples Center with Lil Nas X and other "Old Town Road All-Stars" for an epic rendition of the rapper's record-breaking hit, it marked the first time a K-pop group had ever performed at music's most prestigious awards ceremony.