Margaret Cho‘s “Beauty” tour visits Nokia Theater on Sunday. April, 27. If you have an American Express card, you can buy tix now. Or you’ll have to wait until Jan 24. Because of the writer’s strike, Cho recently turned down the opportunity to visit Ellen DeGeneres. But because CBS has worked out a deal with the Writer’s Guild, she’s appearing on Craig Ferguson tomorrow night, Jan 23 at 11:30p.m. Daniel A. Kusner