Here's one more. "Bhor aayee gaya andhiyaara" from Bawarchi. Rajesh Khanna starts singing this while washing utensils (he is a bawarchi). I love the way in which the entire family collects in the central courtyard one by one to add their voices to the song. Even Harindranath Chattopadhyay the grand old man joins in his unique voice. Asrani sings in Kishore's voice (I think), "Happy days are coming". The whole song is very spontaneous!
Kyaaa baat hai!! Good song by manna-da. Actually I was pleasantly surprised when I saw that movie...Never thought Rajesh Khanna could carry the plain bawarchi-role with such ease.....!!