Question: what was james corden's first carpool karaoke
Answer: # Episode Guest ( s ) Date of first broadcast Songs Mariah Carey March 25 , 2015 `` Always Be My Baby '' `` Fantasy '' `` Vision of Love '' `` Thirsty '' 11 Jennifer Hudson April 13 , 2015 `` Trouble '' `` Spotlight '' `` And I Am Telling You I 'm Not Going '' 34 Justin Bieber ( 1 ) May 20 , 2015 `` Baby '' `` Boyfriend '' `` Where Are Ü Now '' `` End of the Road '' 46 Iggy Azalea June 18 , 2015 `` Fancy '' `` Black Widow '' `` Trouble '' `` Pretty Girls '' 5 48 Rod Stewart ( featuring ASAP Rocky ) July 14 , 2015 `` The First Cut Is the Deepest '' `` Everyday '' `` Da Ya Think I 'm Sexy