Heart have found big success with their version of Led Zeppelin’s ‘Stairway to Heaven.’

The band performed the epic at the Kennedy Center Honors last December and brought the house down and tears to the eyes of singer Robert Plant who was in the audience along with guitarist Jimmy Page and bassist-keyboardist John Paul Jones.

Following that reception, the video of Heart's performance lead to more than six million YouTube hits and an iTunes version went to No. 1 on the rock singles charts.

"It was the best thing that could have happened to us," says Heart guitarist Nancy Wilson, 58, from her California home before the band begins its cross-Canada tour.