He's miming along to the album
"Auto-erotic Asphyxiation" by Candy Dulfer.
Either that or "Careless Whispers" by George Michael.
In fact, I'll go with "Whispers" as it makes the whole scene even more sexeh.
(
Skotzmun Blah blah secret passage blah blah diamonds.,
Mon 9 Apr 2012, 15:01,
archived)