Amanda Palmer's latest musical project is Evelyn Evelyn, a fictional singing conjoined twin duo Evelyn and Evelyn Neville created with Jason Webley. Evelyn Evelyn's eponymous album is brilliant and hilarious, featuring songs like "Have You Seen My Sister Evelyn" and "Love Will Tear Us Apart." The genre is neo-cabaret/circus/jazz/other. Wired reviews the album positively here.
I didn't get to see them at the Oberon this past week, but they'll be playing at the House of Blues in Boston June 19.
To provide another perspective, I am compelled to link to this blog post regarding the ableist issues with Palmer's and Webley's representation of conjoined twins.