<Tr> <Th_colspan="2"> Gossip Girl (season 4) </Th> </Tr> <Tr> <Td_colspan="2"> DVD cover art </Td> </Tr> <Tr> <Th> Starring </Th> <Td> <Ul> <Li> Blake Lively </Li> <Li> Leighton Meester </Li> <Li> Penn Badgley </Li> <Li> Chace Crawford </Li> <Li> Taylor Momsen </Li> <Li> Ed Westwick </Li> <Li> Jessica Szohr </Li> <Li> Kelly Rutherford </Li> <Li> Matthew Settle </Li> </Ul> </Td> </Tr> <Ul> <Li> Blake Lively </Li> <Li> Leighton Meester </Li> <Li> Penn Badgley </Li> <Li> Chace Crawford </Li> <Li> Taylor Momsen </Li> <Li> Ed Westwick </Li> <Li> Jessica Szohr </Li> <Li> Kelly Rutherford </Li> <Li> Matthew Settle </Li> </Ul>

When do chuck and blair get back together season 4