Late-night hosts said Stephen Colbert could host their shows whenever he wants to. Danny Moloshok/AP The big names of late-night got together during one of Stephen Colbert's last episodes. Jimmy Kimmel and Jimmy Fallon joked that Colbert was welcome to host their shows. CBS said last year that it would pull Colbert's show, and May 21 would be his last taping. Late-night hosts joked about giving Stephen Colbert a gig on their shows once his is canceled. Colbert brought five of the biggest names in late-night under his roof for his Monday taping of "The Late Show with Stephen Colbert." Jimmy Kimmel, Jimmy Fallon, John Oliver, and Seth Meyers joined Colbert to talk about the future of late-night, getting slammed by President Donald Trump, and Colbert's looming exit from CBS on May 21. Colbert said it was a "bummer" to end the journey because he wanted to keep the late-night show going with the crew. "Now I can be a guest on all your shows," he said.…