And let me the canakin clink, clink,Lewis includes a couple of Iago's earlier, bawdy remarks to Desdemona: e.g., "If she be black [haired], and thereto have a wit, / She'll find a white [a "wight" or person] that shall her blackness fit [sexually]" (2.1.135-36). When he's done singing we hear some of his dialogue with William Jordan's Cassio.
And let me the canakin clink.
A soldier's a man,
O, man's life's but a span.
Why then, let a soldier drink.
The Killer Rocks One of Iago's Drinking Songs
A few weeks ago, I posted Jerry Lee Lewis's rendering of Iago's first and second soliloquies from the rock musical Catch My Soul. Bill Walthall asked if there were more such tunes on the web. Alas, there's very little. We have Lance LeGault singing as Iago in Patrick McGoohan's 1974 film version and Lewis singing the first of Iago's drinking songs: