Ugly Casanova is an American band on Sub Pop Records. The band has only released one album:Sharpen Your Teeth. 

The legend of Ugly Cassanova is based around the character of Edgar Graham, a.k.a. "Ugly Casanova", who (according to the Ugly Casanova press release) met the band Modest Mouse while backstage at a concert in Denver, Colorado. 

"After some prodding, he shared his work with the band, and began performing it early before shows while some people were milling around. Whenever he completed these performances, he retreated quickly with a look of anger and shame. After a time, a few small recordings were created, after which Edgar vanished." The release goes on to mention that the batch of songs found on Sharpen Your Teeth was delivered to Sup Pop, "in a strange parcel filled with Silly Putty and pelts of three identifiable rodents."

In truth, Ugly Cassanova is a side-project of Modest Mouse frontman Isaac Brock and a number of other collaborators. In fact, two U.C. tracks -- Babys Clean Conscience and Parasites have appeared as unreleased Modest Mouse demos from their 1990 "Paracite Sessions".

The origination of the band name itself is contested. Brock has admitted he created the pseudonym to "escape having to do interviews", but Modest Mouse's 1996 EP The Fruit That Ate Itself was credited to the production company "Ugly Casanova", suggesting Brock may have used the name to retain creative control and publishing rights while under a major label.

Though Ugly Cassanova is Brock's brainchild, he shares some co-writing and vocal duties withHolopaw's John Orth. The collective also included Tim Rutili (Califone, Red Red Meat), Pall Jenkins (The Black Heart Procession) and Brian Deck.

It seems that another release is unlikely, owing to contract issues between Modest Mouse's label, Epic Records, and the contract Brock signed with Sub Pop Records to produce the record.

(taken from http://www.last.fm/music/Ugly+Casanova/+wiki)