Madonna has compared herself to Picasso.

The 56-year-old star claims she will continue making music until she dies because she is so ''inspired'' to keep working, just like the late artist, who died in 1973.

She said: ''I like to compare myself to other kinds of artists like Picasso. He kept painting and painting until the day he died. Why? Because I guess he felt inspired to do so. Life inspired him, so he had to keep expressing himself, and that's how I feel.''

The 'Living For Love' hitmaker - who released her latest album 'Rebel Heart' earlier this year - continued to say she doesn't think her creative streak will ever fade because she always wants to inspire others.

She explained: ''I don't think there's a time, a date, an expiration date for being creative. I think you go until you don't have any more to say.''

The music icon will kick off her 'Rebel Heart Tour' on September 9 in Montreal, Canada and said she has spent ''weeks and weeks'' choosing a set list because she has so many well known hits to choose from.

She added: ''The theme I really truly explore in this show more than anything is love and romance. I want people to walk out like they're feeling inspired and like they've seen something they've never seen before (and) felt something they've never felt before.

''I realize I have 32 years of other songs, so I have to pick and choose. I sit there for weeks and weeks and weeks trying to figure out which of my old catalog I want to do.

''It's a puzzle that we have to put together 'cause thematically the songs -- the old and the new -- they have to go together; sonically they have to go together.''