<Tr> <Th> </Th> <Td> April 26, 2011 </Td> <Td> June 29, 2011 </Td> <Td> Javier Colon </Td> <Td> Dia Frampton </Td> <Td_colspan="1"> Vicci Martinez </Td> <Td_colspan="1"> Beverly McClellan </Td> <Td> Adam Levine </Td> <Td> Carson Daly </Td> <Td> Alison Haislip (backstage) </Td> <Td> Adam </Td> <Td> CeeLo </Td> <Td> Christina </Td> <Td> Blake </Td> </Tr> <Tr> <Th> </Th> <Td> February 5, 2012 </Td> <Td> May 8, 2012 </Td> <Td> Jermaine Paul </Td> <Td> Juliet Simms </Td> <Td> Tony Lucca </Td> <Td> Chris Mann </Td> <Td> Blake Shelton </Td> <Td> Christina Milian (backstage) </Td> </Tr> <Tr> <Th> </Th> <Td> September 10, 2012 </Td> <Td> December 18, 2012 </Td> <Td> Cassadee Pope </Td> <Td> Terry McDermott </Td> <Td_colspan="2"> Nicholas David </Td> </Tr> <Tr> <Th> </Th> <Td> March 25, 2013 </Td> <Td> June 18, 2013 </Td> <Td> Danielle Bradbery </Td> <Td> Michelle Chamuel </Td> <Td_colspan="2"> The Swon Brothers </Td> <Td> Shakira </Td> <Td> Usher </Td> </Tr>

Who were the judges on the voice last season