Ann and Nancy Wilson of Heart, along with Jason Bonham, playing Stairway to Heaven as a tribute for Led Zeppelin on Dec. 2, 2012 at Kennedy Center…

Heart - Stairway To Heaven (Live At Kennedy Center Honors)-awaken

 

It was televised by CBS on Dec. 26, 2012, but as a short version. This is the full version released on iTunes in 2013.

Source: AWAKEN