The following video is a live performance at the Inception premiere in Hollywood.
The track is "Time" from the Inception soundtrack. Hans Zimmer (piano) and Johnny Marr (guitar). And if you listen carefully, you will notice that the score had its 'inception' in the 1940's with Edith Piaf's - Non, Je ne regrette rien. Clever trick!
Hans Zimmer & Johnny Marr LIVE at the Inception Premiere
And the original..........
Edith Piaf - Non, Je ne regrette rien