<Table> <Tr> <Th_colspan="2"> Doc McStuffins </Th> </Tr> <Tr> <Td_colspan="2"> Doc McStuffins logo </Td> </Tr> <Tr> <Th> Also known as </Th> <Td> Doc McStuffins: Toy Hospital (season 4) </Td> </Tr> <Tr> <Th> Created by </Th> <Td> Chris Nee </Td> </Tr> <Tr> <Th> Written by </Th> <Td> Shea Fontana </Td> </Tr> <Tr> <Th> Voices of </Th> <Td> Kiara Muhammad (seasons 1--2) Laya DeLeon Hayes (season 3--present) Lara Jill Miller Robbie Rist Jess Harnell Loretta Devine Amanda Crew Jaden Isaiah Betts Kimberly Brooks Gary Anthony Williams </Td> </Tr> <Tr> <Th> Opening theme </Th> <Td> "The Doc is In" by China Anne McClain (seasons 1--3) Amber Riley (season 4--present) </Td> </Tr> <Tr> <Th> Ending theme </Th> <Td> "The Doc is In" (instrumental) </Td> </Tr> <Tr> <Th> Composer (s) </Th> <Td> Stuart Kollmorgen (score) Kay Hanley (songs) Michelle Lewis (songs) </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United States Ireland </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> 120 (list of episodes) </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Executive producer (s) </Th> <Td> Chris Nee Darragh O'Connell Cathal Gaffney </Td> </Tr> <Tr> <Th> Running time </Th> <Td> approx. 30 mins . </Td> </Tr> <Tr> <Th> Production company (s) </Th> <Td> Brown Bag Films Disney Junior Original </Td> </Tr> <Tr> <Th> Distributor </Th> <Td> Disney--ABC Domestic Television </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> Disney Junior </Td> </Tr> <Tr> <Th> Picture format </Th> <Td> 1080i (HDTV) </Td> </Tr> <Tr> <Th> Original release </Th> <Td> March 23, 2012 (2012 - 03 - 23)--present </Td> </Tr> <Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Th> Related shows </Th> <Td> The Doc Files Vampirina </Td> </Tr> <Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Td_colspan="2"> Official website </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Doc McStuffins </Th> </Tr>

Who sings the doc mcstuffins toy hospital theme