Aap ki aankhon mein kuch / RD Burman saab / Kishore kumar saab /Lata ji / Gulzar saab / Ghar (1978)

One of the greatest gifts to the un-initiated (cant speak for the trained ofcourse) is Kishore Kumar saab. If one were to pick a single lesson among many that he imparts, it is this invaluable tidbit on how to throw your voice.
He demonstrates this time and again , bilkul bindaas with the hope that the sur does land where its supposed to - i mean, mein unkee nahee, apne sur ki baat kar raha hoon :) )
A prime example is probably this Rd-Burman_Kishore_Lata_Gulzar song from the 1978 film that no one has been able to erase from their memories yet.