Josh Groban: The World We Knew (Over and Over)
Josh Groban is a Grammy-nominated singer-songwriter and actor. He has released eight studio albums since 2001, with three of them hitting No. 1 on the Billboard 200 albums chart. Groban has also appeared in the film Crazy, Stupid, Love, The Good Cop and on the series Glee and The Office. Groban's latest album, Harmony, will be released on November 20.