<Table> <Tr> <Th_colspan="2"> My Next Guest Needs No Introduction with David Letterman </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Genre </Th> <Td> Talk show </Td> </Tr> <Tr> <Th> Directed by </Th> <Td> Michael Bonfiglio </Td> </Tr> <Tr> <Th> Presented by </Th> <Td> David Letterman </Td> </Tr> <Tr> <Th> Composer (s) </Th> <Td> Paul Shaffer </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United States </Td> </Tr> <Tr> <Th> Original language (s) </Th> <Td> English </Td> </Tr> <Tr> <Th> No. of seasons </Th> <Td> </Td> </Tr> <Tr> <Th> No. of episodes </Th> <Td> 4 (list of episodes) </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Executive producer (s) </Th> <Td> <Ul> <Li> Justin Wilkes </Li> <Li> Dave Sirulnick </Li> <Li> Jon Kamen </Li> <Li> Tom Keany </Li> </Ul> </Td> </Tr> <Tr> <Th> Producer (s) </Th> <Td> Mary Barclay </Td> </Tr> <Tr> <Th> Cinematography </Th> <Td> Declan Quinn </Td> </Tr> <Tr> <Th> Editor (s) </Th> <Td> <Ul> <Li> Jesse Gordon </Li> <Li> Edward A. Bishop </Li> <Li> Paul Little </Li> </Ul> </Td> </Tr> <Tr> <Th> Running time </Th> <Td> 50--56 minutes </Td> </Tr> <Tr> <Th> Production company (s) </Th> <Td> <Ul> <Li> RadicalMedia </Li> <Li> Worldwide Pants Inc . </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> Netflix </Td> </Tr> <Tr> <Th> Original release </Th> <Td> January 12, 2018 (2018 - 01 - 12)--present </Td> </Tr> <Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Td_colspan="2"> Official website </Td> </Tr> </Table> <Tr> <Th_colspan="2"> My Next Guest Needs No Introduction with David Letterman </Th> </Tr> <Tr> <Th> Genre </Th> <Td> Talk show </Td> </Tr>

Who was the singer on my next guest needs no introduction