The Smashing Pumpkins fans have been left fearing the band's London concert on Monday (22Jul13) will be cancelled after frontman Billy Corgan got trapped on a train from France. The singer/guitarist is travelling back to the U.K. for Monday night's scheduled show at Wembley Arena but he has sent fans into a spin by announcing he is stuck on a stalled Eurostar train in sweltering heat. Corgan relayed his woes on Twitter.com, complaining that he and his fellow travellers are being kept on the vehicle even though many of them are passing out in the soaring temperatures. He writes, "Currently TRAPPED on a stalled Eurostar train, temps over 140 degrees. They won't let us off, people fainting." No further update was available as WENN went to press.