Above: ï»¿Katy Perry performs in concert at the Pepsi Music festival in Buenos Aires, Argentina. (AP Photo/Victor R. Caivano) Tickets for 300 seats next to the stage for Katy Perry&amp;#8217;s Nov. 15 concert at Hartford&amp;#8217;s XL Center will go on sale Friday, Oct. 14 at 10 a.m. Call 800-745-3000 or visit Ticketmaster online. The Connecticut [...]