James Corden welcomes the stars of "Mary Poppins Returns" to perform a musical-inspired Role Call, featuring Lin-Manuel Miranda and Emily Blunt singing classics from 22 musicals covering Evita to The Wizard Of Oz. And Kermit the Frog stops by to help James with ''The Rainbow Connection.''

[To view video on YouTube, click here.]

Watch The Late Late Show with James Corden weeknights on CBS 8 at 12:37 a.m.