When last we heard from piano men Billy Joel and Elton John, they had to postpone their pair of KeyArena shows on account of John’s having the swine flu. Hopefully he won’t relapse in the early days of 2010, as Ashley Graham’s just informed us that the shows have been rescheduled for February 3 and 6. Tickets for the originally scheduled November 4 show will be valid for the Feb. 3 show, just as Nov. 7 tickets will work for Feb. 6.