With lot of help from Audacity, of course :)
Sometimes when I listen to a song, I keep thinking how awesome it would have been if I was able to sing that well, or compose that song or write lyrics like that. "Beladingalante minuminuguta.." from the Kannada movie Psyco is one of such songs.
Today, on a caffeine high run, I took that song, ripped off the male vocals(will explain how I did it.. another day) and dubbed my voice on it using Audacity and a little bit of php.
(Warning: I cant sing well.. not even close to well. Please use external speakers, it mitigates some artifacts introduced by software DSP :) )
Audacity is one awesome piece of software. All hail Audacity!