If you were planning to see Kanye West, above left, and Lady Gaga, above right, together, better hope you saved that recording of the MTV Video Music Awards on your TiVo. A national concert tour featuring Mr. West and Lady Gaga has been canceled, The Associated Press reported. The concert promoter Live Nation was to produce the tour, which was to be called “Fame Kills” and run from November through January, but on Thursday announced that all dates had been dropped. Lady Gaga told Billboard magazine that the ending of the tour had been a “mutual decision” made by her and Mr. West. Live Nation said that ticket holders would receive refunds.